How to estimate the amount of wallpaper needed

How much wallpaper do I need? That’s a great question! And it isn’t hard to figure out.

How to estimate the amount of wallpaper needed

One solid search on the internet for “wallpaper calculator” will turn up a bunch of results for automated engines that will crunch the numbers for you. How handy! But I’ll admit that I don’t trust someone else’s code when I’m trying to figure out how much wallpaper I need for a project. PARTICULARLY when that wallpaper has a repeat pattern, which is most of the time. I really prefer pencil, paper and a calculator.

For most installations, calculating the amount of wallpaper needed is straight forward and easy!

Below, is how I measure for wallpaper. I will walk you through the steps for estimating how much wallpaper you need. Make sure to read through the whole article for additional information and tips.

Measure in inches, ignore trim, windows and doors – this will give you a little room for mistakes and waste

Measurements you will need:

  • Height of each wall in inches
  • Width of each wall in inches
  • Vertical wallpaper repeat in inches (found in product listing)
  • Width of wallpaper in inches (found in product listing)


  1. Divide the height of each wall by the height of the wallpaper repeat.Round fractions up. This will tell you the number of repeats needed for the height of the wall.
  2. Multiply the result of step 1 by the height of the wallpaper repeat. This will give you the length of each strip of wallpaper required to paper from floor to ceiling with enough room to match your repeat.
  3. Divide the result of step 2 by 12. Round fractions up. This will give you the length of each strip of wallpaper in feet.
  4. Divide the width of each wall by the width of the wallpaper.Round fractions up. This will give you the number of strips needed to paper each wall.
  5. Add up the number of strips needed for each wall in order to know how many total strips will be needed to paper the whole room.
  6. Multiply the length of each strip needed by the number of strips needed. This will give you the total wallpaper needed in feet.
  7. If you are ordering wallpaper by the yard, divide the result from step 5 by 3.Round fractions up. This will give you the total wallpaper needed in yards.

See below for an example of how to estimate the amount of wallpaper needed for a room.

Take into account how much extra wallpaper you should have on hand. At minimum, we recommend adding 10% for touch ups and mistakes. Consider buying an additional roll or yardage if one of your walls is a wet wall or has other factors which may require access in the future.

If your walls are different heights or you are papering staircases or vaulted ceilings, consult a professional paper hanger to review the location for your installation. Provide them with the sizes of wallpaper rolls available and the pattern repeat for the paper you will be using. This will allow them to estimate the number of rolls required for your job and determine which roll length will reduce the amount of waste and keep your costs down. Find a paperhanger in your area through the The Wallcovering Installers Association. You are also welcome to contact us. We are happy to help you work through your measurements.

Pearl and Maude wallpaper is made to order. It is important to order enough material for your installation from a single dye lot. We recommend confirming your measurements with a professional paperhanger before ordering.


For this example, we will measure how much Bunsen Blue White Standard Wallpaper we will need to paper a 20’ x 15’ room with 9’ ceilings.

Use this handy calculator to measure how many rolls of wallpaper you’ll need to complete your home improvement project.

To estimate the amount of standard American wallpaper you’ll need, first add up the lengths of all walls to get the distance around the room and enter this figure as the perimeter of the room. Round off to the nearest foot. Next, enter the number of single doors (about 20 square feet), the number of double doors (about 40 square feet), small windows (10 square feet) and large windows (25 square feet). Also enter the square footage of any other openings or areas not to be wallpapered — such as a fireplace.

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Next enter the size of the roll of the paper you’re using in square feet, and click on “calculate.” The calculator will tell you how many rolls of that size are needed. A standard American roll of wallpaper gives you about 35 square feet, but waste and pattern matching usually takes this down to about 27 usable square feet per roll.

Allow for 5% more material for waste. This is an estimate only.

Two wallpapering tips:

  • Always buy paper that carries the same lot, run or batch number. And buy more of it than you need. In addition to a pattern number, wallpaper usually is labeled with the lot, batch or run number, which indicates all the colors in that batch will be consistent. The same color in a different run or lot may be noticeably different. Buy more than you need so you’ll have matching colors if you need to repaper or make repairs in the future.
  • Some waste is created when the paper must be dropped down to match the pattern on the panel just installed. To minimize this problem use two rolls at a time and alternate.

Calculate how many rolls of wallpaper you need for your project by entering your room’s dimensions and coverage per roll below. Estimate the cost by adding the price per roll.

Wallpaper Estimate:

On this page:

  • Wallpaper Calculator
  • How to Estimate How Much Wallpaper You Need
  • Step One: Find the Square Footage of the Room
  • Step Two: Find the Wallpaper Coverage
  • Step Three: Calculate Wallpaper Rolls Needed

How to Estimate How Much Wallpaper You Need

To calculate how much wallpaper you need, follow a few simple steps. First, find the square footage of the surfaces to be wallpapered, determine the usable wallpaper per roll, then calculate how many rolls of wallpaper will be needed to cover the room’s square footage.

How to estimate the amount of wallpaper needed

Step One: Find the Square Footage of the Room

The first step in estimating wallpaper is to find the square footage of the room. Square footage is the measurement of a space in feet. You can find a wall’s square footage by measuring the length and height, and then multiplying them together.

Make sure length, width, and height measurements are in feet before you multiply to find the square footage, it may be easiest to round your measurements to avoid working with inch fractions and decimals.

For example, let’s find the square footage of a wall that is 12 ft wide by 9 ft high wall.

sq ft = width × height
sq ft = 12 ft × 9 ft
sq ft = 108 sq ft

If your walls are not simple rectangles or are complex, then you can split up the wall into smaller chunks and find the square footage of each part separately, then add the square footage measurements together.

For example, if your wall is not a simple rectangle, break it into different sections and measure the square footage of each section and add the different sections together.

How to estimate the amount of wallpaper neededIllustration showing how to break up a complex wall shape into smaller pieces to measure.

Once you know the square footage of each wall, add all of them together to find the total project square footage.

Here’s a tip: try using our square footage calculator to easily find the square footage of your room.

Step Two: Find the Wallpaper Coverage

The next step is to find the usable coverage for your chosen wallpaper in square feet. Different wallpaper patterns have different amounts of usable square footage, which is determined by the drop pattern.

When you drop the next section of wallpaper to align the pattern with the previous section, there will be waste that needs to be cut to make the pattern line up. This waste reduces the usable square footage of the roll.

The following are estimates of the coverage of different drop patterns.

Usable wallpaper per roll for various drop patterns. A standard US wallpaper roll with no pattern will cover 36 square feet, a standard European roll will cover 29 square feet

Drop Pattern Wallpaper Coverage
no drop pattern 29 – 36 sq ft
0″ – 6″ drop pattern 25 sq ft
7″ – 12″ inch drop pattern 22 sq ft
13″ – 18″ inch drop pattern 20 sq ft
19″ – 23″ inch drop pattern 15 sq ft

Step Three: Calculate Wallpaper Rolls Needed

The final step in estimating wallpaper is to use the total square feet and coverage per roll to find the number of rolls you need. Find the number of rolls needed by dividing the total square footage by the usable square footage per roll.

For example, find the number of rolls needed to cover a room with 350 sq ft of walls using rolls that have 25 usable square feet.

rolls = wall sq. ft. ÷ usable sq. ft.
rolls = 350 sq. ft. ÷ 25 sq. ft.
rolls = 14

We recommend ordering about 10% to 20% extra to allow for cuts and waste material. If you are fairly close to an even roll, then it may be a good idea to order an extra roll to ensure you are not short on material.

It might even be worth ordering some extra to allow for future patches and repairs, if needed.

If you’re also doing some painting in this space, you might be interested in estimating how many gallons of paint you’ll need.

How to estimate the amount of wallpaper needed

How do I calculate how much wallpaper I will need for my room?

You will need to work out how much wallpaper you need before you buy. Make sure you’re not left short when installing, and you don’t want to over spend and buy too much.

Use our wallpaper calculator

Measure your room wall by wall. Enter your measurements below to estimate appropriately

How to estimate the amount of wallpaper needed

See something you like? Available through dvd Interior Design.

How Much Wallpaper Do I Need Formula:

Wall area, – 20 square feet per door, – 15 square feet per window, and all of this divided by the usable number of square feet per roll (average).

For American rolls this is:

0″-6″: 32 square feet

7″-12″: 30 square feet

13″-18″: 27 square feet

19″-23″: 25 square feet

Our wallpaper calculator requires you to input some data first. It includes the following values:

Room dimensions: you need to type in the length, width, and height of the room. If your room has a different shape that a rectangular cuboid, you can also input the surface area directly. We recommend that you measure the height of your room anyhow if you want to include pattern repeat into the calculations.

Doors: you can leave the default dimensions of doors or customize them. Once you will type the number of doors in, the wallpaper calculator will find their area automatically.

Windows: again, you can choose the default dimensions or type in custom ones. If you have windows of different sizes in your room, you can also calculate the total area manually and input this value into the appropriate box.

Wallpaper specifications: these includes values such as the cost of one wallpaper roll, its length, width, and the paper repeat (measured vertically). All of these values can be found on the wallpaper packaging.

Once you type in all of these values, our wallpaper calculator will find the following for you:

Adjusted height: this is the actual length of wallpaper you will need to use per stripe to account for the pattern repeat.

Adjusted room area: takes into consideration both the pattern repeat and openings.

Number of rolls: the total number of wallpaper rolls you need to buy. This number is always rounded up.

Total cost: the total amount of money you need to pay for your wallpaper.

How to estimate the amount of wallpaper needed

It’s Back!

Yes, wallpaper for your home is back and it’s back in a big way!.

Despite all those tiring memories of scraping that old yellow wallpaper from the past (1970?) off of many walls to clean them up with a fresh application of paint, I am excited to add paper as an instant update to any room, interior design with wallpaper can be fun. The options available today have me forgetting those painful memories and wanting more. It’s looking great in the entry, the bathroom and on the ceiling. It is a welcomed trend shift for an update.

So here are the latest prints and designs of wallpaper designs for your walls, ceilings and bookcases. Take a look at some of the best interior design wallpaper, everything from florals, to wood textures, murals and more.

( click here to see Part 1 of our selections) Timeless and Classic, Funky and Fun

( click here to see Part 2 of our Selections ) Motifs and Murals , Custom NY Printers and more.

How to estimate the amount of wallpaper needed

image via designer Ghislaine Vinas with Flavor Paper, photo via Garret Rowland.

Flavor Paper

And as always, make sure you’re registered to receive dvd Interior Design blog updates directly in your inbox.

How to estimate the amount of wallpaper needed

Serena & Lily

Thank you For stopping by. I hope you were inspired, or found what you were looking for.

Here’s another Wallpaper Calculator for simple calculations

UPDATES: This week is going to be a crazy week with market approaching and a few new project prospects to meet, but i wanted to share with you a few exciting developments occurring this Fall.


Anticipation is in the air, as I am super excited to announce that I will be a COMMUNITY LEADER for the return of the BLISSDOM CONFERENCE in Nashville, TN this November.

Yes, it has been 10 years since the last conference, and I can’t tell you how important those connections that I have made many years ago have been for me as I evolve my online experience. Blissdom is all about the power of community, wisdom, and that rising tides lift all boats. We are a community of women that works to improve our lives and businesses because we know that true success depends on both.

As a Community Leader, I will help to ensure the Blissdom vision is a reality, and serve as an official ambassador of Blissdom, by helping to share the culture and any updates about Blissdom on social media leading up to the event.

While at Blissdom, make sure to visit the WORKSHOPS where I will help to welcome fellow attendees and answer questions as they arise. Additionally, I will facilitate discussions during the Q&A time at the end of the workshops.

DM me on Instagram if you will be attending. This is going to be another amazing year!

How to estimate the amount of wallpaper needed

How to estimate the amount of wallpaper needed

How to estimate the amount of wallpaper needed

How much wallpaper will you need:

A single roll of wallpaper is 27 inches wide by 5 yards long (68.58 cm x 4.57 meters) and covers 30 square feet (waste and pattern matching usually takes this down to about 27 usable square feet per roll). It’s important you order the amount of paper you need in one order to ensure you get all your wallpaper from the same dye lot, as a different dye lot may have slight color variations.

Measure the length of the wall area you plan on covering and multiply it by the height of the walls to determine the square footage.

For example, if you have 9 ft ceilings and will be covering 40 ft in length, you would multiply 40 x 9 and arrive at 360 square feet. Divide the total square feet of wall space by 27 to determine the number of rolls required.

The formula is: Square footage ÷ by 27 = Number of rolls.

At this point, you could subtract 21 square feet for any doors and 15 square feet for each window. But, to be on the safe side, we advise not subtracting for doors and windows; the extra paper might be needed for matching the pattern, or making repairs in the future. In the example above, you would require 14 rolls: 360 ÷ 27 = 13.3.

This formula is an approximate guide only, and we advise that you consult your decorator or installer prior to purchasing wallpaper.

Wherever possible, we print and ship in double and triple rolls to minimize waste for installation. We recommend professional installation for your wallpaper. If you would like to find a paperhanger in your area, we recommend the National Guild of Professional Paperhangers.

If you need help calculating quantities required please contact us with your wall dimentions and we will be happy to help.

Grab a calculator

Many online wallpaper calculators do not factor in repeat patterns and half drops. We highly recommend you follow the following calculation to work out how much wallpaper you require:

First things first

Eyvi wallpapers are 52cm wide and 1005cm (10.05m) long. You will also need to know the following for your chosen design:

  • The vertical pattern repeat in cm
  • Whether the design repeat is straight or a half drop

This information is available on each product page.

Step 1. Measure the Wall

Measure the width and the height in cm. If the walls have the same heights you can add the widths together. If not, work out one wall at a time.

Example wall: 400cm wide x 240cm high

Step 2. Work out the drops

Divide your wall width in cm by 52cm. Then round up to the nearest whole number.

Example: wall width 400cm divided by 52cm = 7.69

Rounded up = 8 drops

Step 3. Multiply drops x wall height

Example: 8 drops x 240cm = 1920cm

Step 4. Add the pattern repeat

Add a pattern repeat length for each drop, apart from the first one.

Example (imaging the pattern repeat is 70cm):

7 drops x 70cm = 490cm

Step 5. Factor in for a half drop

If the wallpaper is a half drop design, then you need to add half of your total pattern repeat again. (If it is straight drop you do not need to add anything else).

For example: 490cm divided by 2 = 245cm

Step 6. Add up and round up

Drops x wall height : 1920cm

70cm repeat: 490cm

Half drop: 245cm

Round up to the nearest 1000CM = 3000cm

= 3 x 1005cm/10.05m rolls required

Step 7. Measure twice – order once!

Yes! Repeat the above measuring and calculating to be absolutely sure of your calculations.

Each batch of wallpaper ordered may differ ever so slightly, so it is important to order the correct amount up front.

If you need help to calculate your requirements please get in touch. Whilst we provide this information in good faith, Eyvi cannot be held responsible for miscalculations.

How to estimate the amount of wallpaper needed

  • Post author:Alastair Carey
  • Post published: December 13, 2019
  • Post category:Tools

Wallpaper is a great way to deck your walls up. However, if you’re not an interior decorator or a professional, you really can’t tell how much of paper you will actually need.

Cost also might prove to be a dampener. Not to worry though! A wallpaper calculator will let you know how many rolls you require, and how much that is likely to cost you.

  • For starters, measure the walls or the ceiling that you want to cover. Enter the length, height, and width
  • Enter the number of doors and windows leaving default dimensions as they are. If there are different sizes, calculate the total area and enter the figure
  • Also, enter the length and width of the wallpaper roll, paper repeat, and cost of one roll.

All these values will be mentioned on the packaging itself.

Once you get all these figures into the calculator, it will tell you how many square feet of wallpaper you need, the number of rolls and how much you’re likely to spend.

It’s a good idea to not minus the door and window space while calculating the amount of ‘usable’ wallpaper you’ll need. Having a little extra wallpaper won’t set you back a lot.

Wallpapers are the easiest way to decorating your interior walls with different types of texture, colors, and patterns available in the vast varieties to choose from.

Let’s discover basic things…

Wallpapers are charged on per square feet basis, but there is a minimum amount which you has to pay for the roll.

Here, roll means a single bundle of the design which you choose to have on your wall. This roll comes in specific size which is 56 square feet approx and it covers 47-48 square feet with plain design and 40-42 square feet with pattern design (e.g flower) of your wall area including wastages.

A company doesn’t give the wallpaper in a cut piece like for 20-25 square feet of application, you have to buy at lease single roll of wallpaper.

The single roll cost you around Rs.5500/- (with material & installation charges) and goes up to Rs.10-15k depends on the type of wallpaper and design you choose.

Let’s say your wall area is 70 square feet and you chose a plain design for your wall where single roll covers only 48 square feet, then you will not get 22 square feet another cut piece of that wallpaper, you have to buy another roll.

Means, If one roll cost you Rs.5500/- then you will have to pay another 5500 for the second roll.

There are no major requirements to install wallpaper on your desired interior wall.

Make sure your wall ready with a smooth surface is done with lambi, putty and oil primer. There are two types of primer which are oil primer and water primer, water primer will not work for sticking wallpapers because it will peel off after some time.

Even if you want to install wallpaper on your plywood partition then it will also require applying oil primer.

Oil primer is the must!

That’s it, and you are ready to install wallpaper.

This is the point where most of the homeowners make a mistake.

During the renovation, don’t be in hurry to install wallpaper, it is a finishing item and should only be installed after all the work done at your sites like furniture and painting etc. Because if you install wallpaper during renovation then there is a chance of scratches or spreading paint drops on the surface of wallpaper and edges. And it will be difficult to remove stains and rearrange new wallpaper with the same pattern.

Yes, you can order totally customized design for wallpaper you’re required.

But you have to give the design or photo in high-resolution (HD) form with an appropriate file extension. It takes a week time for delivery and 85% advance payment to proceed the order.

Very quick,
For 100 square feet wall, wallpaper installation just takes 2-3 hours.

Decorating or renovating? We know how difficult and stressful that can be. That’s why we created the wall square footage calculator to help you with these tasks – no matter what wall covering you decide on 🖌️

Follow our article below to discover how to find square feet of a wall – you’ll also learn some tips & suggestions on how to improve your walls’ design.

How to calculate square footage of a wall? The wall square footage calculator

Figuring out square feet has never been easier – follow closely the instructions below to learn how to find square feet of a wall!

  1. Choose your room’s shape:
  • Rectangle – input the lengths of two walls that touch the same corner;
  • Square – input the length of one wall; and
  • Other – enter the total measured length of all the walls.

💡 If you are painting or wallpapering, you can also calculate the wall square footage needed for walls of any shape using our area calculator.

  1. Enter your ceiling’s height:

If you plan to have a dropped ceiling, remember to consider it. It may be important when figuring out square feet.

  1. Estimate the number of doors in your room:
  • Our standard door is 21 ft² (1.95 m²).
  • For double doors, multiply the number of doors by 2 .
  1. Estimate the number of windows in your room:
  • Our standard window is 12 ft² (1.11 m²).
  • If you don’t have any windows in your room, type 0 .
  1. Your wall footage is here! Now that you know how to calculate square footage of a wall, what’s your next step?
  • Are you planning to buy wallpaper? 🌺
  • Or are you more keen on vinyl wall panels? 🌸

How to figure square footage of a wall?

It doesn’t matter whether you’re thinking how to calculate wall square footage for paint or for wallpaper – it’s the same. Use these pieces of advise to improve your ability to figure out the square feet of your wall:

Precise measurement is the key 🔑 – no matter if you’re using the wall sq ft calculator or computing everything yourself:

Start with drawing a plan of your room/house – it’ll make it easier to measure and store data;

Alway use the proper equipment – a steel tape measure or a yardstick;

Measure the length of your walls, including both doors and windows; and

Determine the height of your walls – measure them from the floor to ceiling. Exclude the length of a dropped ceiling or moulding (coving).

It’s math time! Let’s find out how to calculate the square feet of a wall.

So how do we calculate the square feet of a wall? The equation is simple:

walls square footage = total length of the walls * ceiling height

But how to calculate sq ft of a wall with doors and windows? 🤔

corrected wall square footage = wall square footage – windows area * number of windows – door area * number of doors

Now it’s time to figure out the square feet of windows and doors – take a look at the standard sizes, presented in the table below:

Windows 3 x 4 ft 12 ft²
Doors 3 x 7 ft 21 ft²

That’s how to calculate square feet of a wall. Are you still at the beginning of your journey, not yet sure about the number of planned doors and windows? Try our basic construction calculators:

  • Find out how to deal with wood & steel framing;
  • Estimate the amount of drywall you’ll need;
  • Dreaming big? Try the concrete block wall calculator or the brick calculator 🧱

DIY walls design

After learning how to find the square feet of a wall, why not to go wild? When planning wall decorations, we usually think in the box. It’s time to let it go!

  1. Tape

Tape allows you to do any kind of geometrical design you could possibly think of. Wall split in half? You got it. Complex geometrical, colorful shapes? Hold my beer.

The most crucial part about tape decoration is to buy good tape. Trust us – it’s better to spend a few bucks more on tape than to have all your hard work destroyed in the blink of an eye.

  1. Frames 🖼️

Vast, empty frames glued to a wall/wardrobe, painted with the very same color. These details can truly add to a feeling of prestige to the interior of a house.

  1. Your walls don’t have to be identical

Play with different colors, textures, wallpapers, and materials. If you know how to figure the square footage of a wall, the world is yours!

  1. Moulding (no, we’re not talking about the typical ceiling one.)

Moulding can create simple, yet elegant and exciting details on your walls – not to mention it’s extremely easy to apply!

Note: This is only an estimate. Please contact a professional wallcovering installer before placing your order.
Check out the Wallpaper Estimator For Rolls

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Before you begin painting your home’s interior walls, ceilings, woodwork, doors, or windows, you need to estimate the amount of paint you’ll use. Estimates require specific calculations for each surface you want to paint.

To estimate the amount of paint you need in order to cover the walls of a room, add together the length of all the walls and then multiply the number by the height of the room, from floor to ceiling. The number you get is the room’s square footage. Is that math class coming back to you now?

How to determine square footage

Now you have to determine how much of that square footage is paintable surface area. Because you use a different paint on the doors and windows, subtract those areas from the room total. No sweat, just subtract 20 square feet for each door and 15 square feet for each average-sized window in the room. You end up with a number that is close to the actual wall area you have to cover with paint.

In general, you can expect 1 gallon of paint to cover about 350 square feet. You need slightly more than a gallon if the walls are unpainted drywall, which absorbs more of the paint. You also need to consider whether to paint more than one coat. If you’re painting walls that are unfinished, heavily patched, or dark in color, plan on applying two coats of paint.

When painting a dark color, pros often add a color tint to the white primer. Tints for both latex or alkyd paints are available at most paint stores. For best results, choose a tint shade that’s closest to the top coat color.

Now for the clincher of the math problem. Divide the paintable wall area by 350 (the square-foot coverage in each gallon can) to find the number of gallons of paint you need for the walls. You can round uneven numbers; if the remainder is less than .5, order a couple of quarts of wall paint to go with the gallons; if the remainder is more than .5, order an extra gallon. Of course, buying in bulk is usually more economical, so you may discover that 3 quarts of paint cost as much as a gallon.

Examples of calculations

The following examples walk you through the calculations for determining how much paint you need for a 14-x-20-foot room that’s 8 feet tall and has two doors and two windows.

Ceiling paint estimator

Use the following formula to estimate the amount of ceiling paint you need. Double the result if the ceiling requires two coats.

1. Multiply the length of the ceiling times its width to find its area.

14 Г— 20 = 280 square feet

2. Divide that number by 350 (the estimated square feet covered per gallon) to figure out how many gallons of paint you need.

For this example, you want to buy 1 gallon of ceiling paint for a single coat.

Wall paint estimator

Use the following formula to estimate the amount of wall paint you need. Double the result if the walls require two coats.

1. Add together the length of each wall.

14 + 20 + 14 + 20 = 68 feet

2. Multiply the sum by the wall height, to find the total wall area.

68 Г— 8 = 544 square feet

3. Subtract 20 square feet for each door (20 Г— 2 = 40) and 15 square feet for each window (15 Г— 2 = 30) to find the actual amount of wall area you’re painting.

544 – 70 = 474 square feet

4. Divide this figure by the paint coverage (350 square feet per gallon), and the result is the number of gallons to purchase.

For this example, you want to buy 1 gallon and 2 quarts of paint for a single coat.

Woodwork paint estimator

Measure the length of the trim in feet, and multiply that number by 1/2 foot (.5), as a rough size for the width of the trim. Include all the trim around doors and windows, at baseboards, along the ceiling, and for any built-in furniture.

As an example, imagine that you have ceiling molding running around a room that is 14 feet wide and 20 feet long.

1. Determine the total length of molding around the room by adding together the length of all the walls that the molding covers.

Round the numbers off to the nearest foot.

14 + 20 + 14 + 20 = 68 feet

2. Multiply the sum by .5 for an estimated width of the molding.

68 Г— .5 = 34 square feet

3. Divide this number by 350 to estimate the gallons of paint required to cover the molding.

The result in this example is much less than a quart, but you may paint other woodwork in the room the same color, so buying a full quart may not be terribly wasteful.

Door and window estimator

Use the same figure for estimating door coverage as you use in your wall-area calculations — 20 square feet = one door. Multiply the number of doors by 20, doubling the answer if you plan to paint both sides. Wall paint estimates allow for 15 square feet for each window. Use about half that window area to figure trim and inside sash — the glass isn’t important to the calculation.

For the room in this example:

1. Multiply the number of doors by 20.

2 Г— 20 = 40 square feet

2. Multiply the number of windows by 7.5.

2 Г— 7.5 = 15 square feet

3. Add these numbers together.

4. Divide the result by 350 (the estimated square feet covered per gallon).

Often, you end up needing to buy only a quart of paint, which goes a long way on doors and window trim.

International shipping is available through L.A. Design Concepts. To ship internationally, you need to have an account with a freight forwarding company here in the U.S.

Many of our clients have had success with will handle all necessary paperwork and calculate any duties or taxes that may be required for your shipment. You may also elect to use a freight forwarder of your choice.

1. Place your item(s) in the cart and proceed to checkout.

2. Under billing address enter your freight forwarders address.

3. Continue filling out all contact information. (ship to a different address not required)

4. Under payment options select (Wire Transfer). Your order is now pending payment. An LADC representative will confirm stock and email our wire transfer information to finalize your order.

LADC does ship furniture & lighting internationally. Please contact office for details.

We only accept wire transfers for merchandise shipping out of the country.

Thank you for your interest in L.A. Design Concepts!

Samples are available to purchase for $5.00 each to assure color accuracy. A PURCHASE SAMPLE button is located under each product image.

Please allow 7 to 10 days to receive your samples directly from each manufacturer. Our team looks forward to helping you with your next order.

Thank you for placing your sample re-order.

Please allow 7 to 10 days to receive your samples directly from each manufacturer. Our team looks forward to helping you with your next order.

We appreciate your patience.

To re-order samples you have not received after 21 days, please check the box next to the samples you are missing and then click the SUBMIT RE-ORDER button.

Your request for a refund has been received.

You will be refunded the cost of sample and the item will be removed from your order.

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Due to the high demand of samples.
Only 1 sample allowed per colorway.

Thank you for your understanding!

Samples are not available by the manufacturer and are on back order.

Stock is most likely available If you would like to place an order without a sample.

L.A. Design Concepts has created the first platform of its kind featuring over 200,000 exclusive “trade only” items being made available to purchase.

Our Premier Design Service is tailored for today’s consumer with discriminating taste who feels confident in making his or her own design decisions. Many interior designers and architects also elect to use our services for the convenience of expediting access to all trade lines. Our pricing structure is the same for consumers, designers and architects.

Upon making your selection, our design staff will process your order to your exact specifications. We will coordinate freight and “White Glove” delivery to your residence or project site. If you require assistance specifying your finish options or sizing, please contact our design staff. (562) 439-5626

L.A. Design Concepts has been bringing designer furnishings into homes since 1987.

L.A. Design Concepts can provide you with our “Letter of Introduction” to shop your local design center. Our letter will provide you with a higher level of customer service when the showrooms recognize you are represented by an industry known firm.

While visiting the designer showrooms you will have the advantage of seeing all of the furniture and textile lines up close and in person. You may also request “tear sheets” on items selected that displays a photo and all of the product specifications.

Our story begins in 1987 when founder and designer Frank Keshishian launched L.A. Design Concepts a residential interior design firm.

While Mr. Keshishian designed homes for his clients, he recognized a fast growing market of consumers who preferred to make their own design decisions. Understanding that desire, Frank created the first design service offering consumer access to designer “trade only” furnishings.

In 1988, L.A. Design Concepts was nationally recognized as a groundbreaking company revolutionizing consumer access. The Pacific Design Center in Los Angeles was very intrigued with L. A. Design Concepts working model and approached Frank in 1990 to formulate a consumer service program within their design center. L.A. Design Concepts was now the first service within a design center providing consumer access to “trade only�? furnishings. Shortly thereafter, an increasing number of interior designers and architects recognized the value of streamlining their access through one single source. Our service allowed designers to focus on designing for their clients without having to maintain accounts with each individual manufacturer.

We are happy to match a competitive price from another authorized retailer to guarantee you the best value. Unfortunately, we are not able to price match from companies located in the United Kingdom since pricing in the U.K. DO NOT include duties or taxes when shipping to the United States.

Please email your lower price quote or link displaying a lower price to [email protected] Also include a contact phone number in case we have any questions.

See what our clients are saying: REVIEWS

Thank you for your interest in L.A. Design Concepts!

We have the Most Advanced color search tool Search over 100k patterns in seconds

Simple Calculation Guide for Number of Rolls Required

Find The Surface Area Of A Wall

1. Measure the width and height of the wall in your chosen unit of measurement. (We use metres in this tutorial.)

2. Multiply wall width and height together = _ m² (Surface area of the wall.)

3. Repeat the steps for each consecutive wall that you wish to apply wallpaper to.

4. Add each figure together to get: ‘Total Wall Surface Area m²’

How Many Rolls?

1. Divide the ‘Total Wall Surface Area’ by 5.2 (5.2 = m² coverage of one roll)

2. Round this number up the nearest whole number i.e: 3.6 gets rounded to 4 rolls of wallpaper.

This is the minimum number of rolls you will need.

We always recommended that you order an extra roll of wallpaper than you need. This is to be certain you have enough wallpaper for trimming allowance and to account for any unexpected difficulties when hanging.

Many people store a roll of the wallpaper for potential future touch ups. Alternatively, any unused, unopened rolls of wallpaper may be returned.

Pattern Repeat

All of the wallpaper designs in the Surface House collection are a ‘straight match’. (See image below). Meaning the pattern matches at the same horizontal point on each strip of wallpaper; there is no ‘drop’ in the pattern.

This makes planning and applying the wallpaper easier for you and means that there is less wallpaper wastage overall.

If you need to measure a wall that has windows or doors, check out our other simple step by step tutorial:

‘How To Calculate Wallpaper’

We hope this simple tutorial was useful to you. If you need any assistance or advice please get in touch and we will be more than happy to assist you.

To use our wallpaper calculator, please type in the length of your room, the width of your room and your ceiling height. You then need to fill in the number of doors and windows in the room. Our calculator will tell you the number of single rolls of wallpaper that you will need to wallpaper the room, and give you the number of spools of border that you will need. Note: This calculator is meant to estimate the amount of wallcoverings that you will need for your project. Interior Place will not be responsible for overage or shortages based on your measurements.

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How to estimate the amount of wallpaper needed

Not ordering enough paint for your decorating project can be frustrating, but overordering will mean you’re left with materials you don’t need. That’s why we created our handy paint calculator, which is built into each of our paint product pages to help you get it right first time.

Our online advice is designed to be a helpful starting point, but we strongly recommend that you check with your decorator or email [email protected] for more detailed advice before ordering.


Please note that we don’t take doors, windows or alcoves into consideration when making our calculations, and that the paint calculator is only suitable for calculating wall paint requirements.

You should also think about the nature of your painting surface before you begin – porous walls are likely to require extra coats, as are walls undergoing dramatic colour transformations, although using the right Primer & Undercoat for your project can help to minimise the number of coats required.


This table is a guide to the maximum coverage of our paint finishes. Coverage is dependent on thickness of application and the condition of the surface you’re painting, and all our figures are based on one coat. However, for best results, we recommend following the Farrow & Ball system of one coat of Primer & Undercoat followed by two coats of topcoat. For more information, see our in-depth guide to preparation and application.



Maximum coverage per coat*

Recommended coats**

Drying time***

100ml, 2.5 litres, 5 litres

70m 2 per 5 litres

Dry in 2 hours / recoat 2 hours

2.5 litres, 5 litres

60m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

750ml, 2.5 litres, 5 litres

60m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

750ml, 2.5 litres, 5 litres

60m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

750ml, 2.5 litres

30m 2 per 2.5 litres

Dry in 2 hours / recoat 4 hours

750ml, 2.5 litres, 5 litres

60m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

40m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

750ml, 2.5 litres

32m 2 per 2.5 litres

Dry in 2 hours / recoat 4 hours

2.5 litres, 5 litres

65m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

65m 2 per 5 litres

Varies on conditions

Dry in 3 hours / recoat 12 hours

Exterior Wood Primer & Undercoat

750ml, 2.5 litres

32m 2 per 2.5 litres

Dry in 2 hours / recoat 4 hours

Interior Wood Primer & Undercoat

750ml, 2.5 litres, 5 litres

60m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

Wall & Ceiling Primer & Undercoat

2.5 litres, 5 litres

60m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

Wood Knot & Resin Blocking Primer

750ml, 2.5 litres

32m 2 per 2.5 litres

Dry in 2 hours / recoat 4 hours

Wood Floor Primer & Undercoat

750ml, 2.5 litres

32m 2 per 2.5 litres

Dry in 2 hours / recoat 4 hours

Metal Primer & Undercoat

Dry in 2 hours / recoat 4 hours

Masonry & Plaster Stabilising Primer

100m 2 per 5 litres

Dry in 2 hours / recoat 4 hours

*Figures are based on one coat. However, we recommend following the Farrow & Ball system of one coat of Primer & Undercoat followed by two coats of your required paint finish.
**Additional coats may be required depending on surface and topcoat colour.
*** The drying and recoat times provided are based on applying paint in normal conditions. Drying times may be longer in cooler and/or higher humidity environments. Darker colours may take longer to dry.

How to estimate the amount of wallpaper needed

Whether you plan to paint a bedroom, the entire interior, or the exterior of your home, you’ll need to calculate how much paint to buy. Buying too much paint is a waste of money, and buying too little paint is a total headache, so you’ll want to ensure your estimate is accurate.

Here’s how to calculate how much paint to buy.

Measuring the Paintable Surface Area

The first thing you will need to do is calculate the surface area you plan to paint. This is a fairly simple calculation.

First, measure the length of each wall, and add them together. This is the perimeter of the room. Then, measure the height of the wall. Multiply the perimeter and the height, and you’ve calculated the total surface area of the walls in your room.

To illustrate, imagine the perimeter of the room 12m, and the height of the walls is 2m.

12m x 2m = 24 metres squared

The total surface area of your room is 24 metres squared.

Now, consider the number of doors and windows. For each door, subtract 1.9 metres squared, and for each window, subtract 1.4 metres squared. Say this room has one door, and two windows. The total paintable surface can be calculated as follows:

Door and window surface area = (1 x 1.9) + (2 x 1.4)
= 4.7 metres squared

Total paintable surface = 24 – 4.7
= 19.3 metres squared

How Much Paint to Buy

As a general rule, 1 litre of paint will cover between 6 and 6.5 metres squared of wall.

So, to calculate how many litres of paint you will need, divide the total paintable surface area by 6.5. Let’s return to the example above, and calculate how much paint is required.

Paint required = paintable surface area / 6.5
= 19.3 / 6.5
= 2.97 litres

For this example, you’ll need to purchase 3 litres of paint.

Other Considerations

There are a few things you’ll need to consider when calculating how much paint to buy.

  • Are you repainting a wall, or painting bare drywall? Drywall will absorb more paint, which means you’ll need to buy slightly more paint, even if you’ve coated it with a primer.
  • Are you painting in a light or dark colour? If you’re using a dark colour, you will probably require a tinted primer, too.
  • Don’t forget about future retouches. Always round the required amount of paint up, because you can use that paint in the future to touch up and remove stains and areas of wear and tear.

Here’s a Short Cut

Instead of making these calculations yourself, head over to the Dulux Paint Calculator. From there, simply type in your room’s dimension, the number of windows, and the number of doors and the calculator will do the work for you.

Have Your Home Painted

The easier option is to leave it all to us, the professional house painters Brisbane and Gold Coast locals trust. We can answer all of your questions, including how much paint to buy, how long does it take to paint a room, and more.

Contact us for a quick and accurate quote. Give us a call on 07 3829 5735 or fill out the form on this page.

Are wallpapers budget-friendly? How much does one roll cover? What are the wallpaper installation costs? We answer all your questions about wallpaper prices!
(This is a chapter of a bigger guide on wallpapers.)

How to estimate the amount of wallpaper needed

In our last post, we told you if it’s possible to paint over wallpapers or not.

Haven’t read it yet? Head over here!

But, today, we’re going to solve for and answer the other big question about wallpapers: How much do they cost and where can you find them?

This is not a straightforward answer and we need to answer a few other questions first.

So, you can either skip to the end or read through this blog post carefully to have a thorough understanding.

So, here’s what this post will help you with:

  • What factors does the cost of wallpapers in India depend on?
  • How much does a wallpaper cost for one wall.
  • Wallpaper installation cost.
  • Wallpaper price in India by brand.
  • Mid-range wallpapers & where you can find them.
  • Wallpaper cost online and websites to get them from.
  • Are wallpapers budget-friendly?

But before everything else, here’s some quick FYI for you:

The size of a standard wallpaper roll is: 32.97 ft x 1.73 ft
A standard wallpaper roll would cover: 57 sq ft
The average ceiling height in India is: 9 ft-10 ft
Once you deduct skirting and false ceiling,
the ceiling height may come down to 8 ft. In that case,
one roll will (depending on the design and possible
wastage) cover close to:
5 ft-6 ft wide wall

Cool? Now that you have the basics sorted, you can always come back to this table for reference.

This brings us to…

What Factors Does the Cost of Wallpapers Depend On?

  • Complex designs and textures — these bring up the cost.
  • Materials — paper-backed and printed vinyl wallpapers (both self-adhesive) tend to be cheaper. Non-woven and non-woven fabric wallpapers are found in mid- to high-end range.
  • Designer collections and premium ranges by brands — these cost more than basic designs. For instance, Nilaya’s offers the Sabyasachi range at ₹8,000-₹17,500 but the same brand also offers wallpapers for ₹4,999.
  • In-house services of branded wallpapers — these will always cost more, but come with quality assurance. You can also find labour at competitive prices from local contractors, but the workmanship needs to be verified.

How to estimate the amount of wallpaper needed

And, thus, we finally come to: Wallpaper Prices & Availability

How Much Does Wallpaper Cost For One Wall?

This will depend on the design and the quality of the wallpaper chosen.

How Much Does Wallpaper Installation Cost?

The market rates for installation mostly fall between ₹8-₹15 per sq ft.

Cost of Wallpapers in India (By Reputed Brands)

If you don’t want to compromise on quality and finesse, branded offerings will assure you a well executed design.

Wallpaper Brand / Store Wallpaper Price Per Roll USP Where to Find Them
Nilaya by Asian Paints ₹4,999-17,500 Homegrown brand, inspired by Indian aesthetics; designer collection by Sabyasachi Across major cities,,
Marshall’s Wallcovering ₹2,200-8,500 Earliest brand in the country; diversity in designs (from classic to contemporary); designer collection by Krsna Mehta. In 19 cities,,
D’decor ₹3,000 – 8,700 Reputed for its high-end designs. Across major cities,
Elementto Shared on request International brands from US and Europe; premium one-of-its-kind designs. Mumbai and Delhi

Cost of Wallpapers in India (Mid-Range) & Where to Find Them

How to estimate the amount of wallpaper needed

  • Local home decor retail stores are your best bet in finding mid-range wallpapers.
  • Major stores like @home, Home Centre and Homestop keep a catalogue of wallpapers that you can purchase from.
  • The choices, however, may not be as exhaustive as the branded offerings.

Your next best source for economical wallpapers is the online marketplace.

Cost of Wallpapers in India (Online) & Where to Find Them

How to estimate the amount of wallpaper needed

Website Lowest Price (per roll) USP ₹279 You can go through the reviews for design accuracy. ₹2,000 You can find branded wallpapers, including Nilaya’s and Marshall’s. ₹1,400 You can find international brands and designs. ₹98 (per sq ft) Customisation is available. ₹130 (per sq ft) Printed graphics and customised designs are available.
International fashion sites like and ₹209 Extremely limited collection. Mostly leftover stock (suitable for small applications).

So, Are Wallpapers Budget-Friendly Then?

More often than not, painting will always be a cheaper alternative to wallpapers.

Having said that, wallpapers can still be a cost-effective way to spruce up your space — whether it is your home or your office.

Because very rarely will one apply wallpaper on all four walls. Highlighting just one wall, a pillar or portion of a wall space (like below) is often enough to give you the desired ambience. And this is one of the factors that can affect your wallpaper budget.

How to estimate the amount of wallpaper neededYou don’t have to use wallpaper on the entire wall. Using it on portions brings down the costs and still has a big impact.

What’s Coming Up Next?

Well, our next (and last) post as part of our guide on wallpapers in India is an all-encompassing piece that will cover types of wallpaper, how to wallpaper and everything else in between.

Until then, you can check these posts out:

  • Wallpaper Vs Paint: Which One Should You Choose?
  • Painting Over Wallpaper & Vice-Versa: Is It Possible?

Need to know how much paint to buy? A little math can save you a lot of time when it comes to interior painting.

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How to estimate the amount of wallpaper needed

Anyone with their first interior home painting project has stood in the paint aisle wondering how many cans they need to bring home.

To keep your colors matching and avoid return trips to the store, do some calculations ahead of time:

How Much Paint Is Needed for Walls?

  • Start by adding up the length of all the walls to be painted, from end to end.
  • Then multiply that number (the perimeter) by the height of the walls, from floor to ceiling. That will give you the square footage of the room to be painted.
  • Finally, divide your total number by the approximate coverage of one gallon of paint (about 400 sq. ft. per gal.). This gives you how many gallons of paint you need for one coat of paint on the walls.

Pro2Pro Tip: Don’t forget the second coat! The rule of thumb is to apply two coats of paint on walls and one on the ceiling, but individual situations vary.

More tips on wall paint coverage:

  • Painting white paint over clean, new white paint? Or same color on top of same color? You might be able to get by with just 1 coat.
  • Porous surfaces like stucco or unpainted drywall absorb paint at a higher rate, so you’ll likely need more paint than the amount calculated.
  • Be prepared for future touch-ups with 1-2 quarts of paint. Get any custom paint at the same time to ensure evenly matched shades.

How Much Paint Is Needed for Ceilings?

As with the walls, to arrive at the ceiling’s square footage, multiply its length by its width. Then, to determine the gallons of paint needed, divide that number by 400.

Excluding Windows and Doors:

If you’re not painting your doors and windows trim, don’t buy paint you won’t need. You can calculate their square footage by multiplying each object’s length x width, then subtract that number from the wall paint total.

Or estimate:

Standard size doors are approximately 20 sq. ft. and windows 15 sq. ft. Add up how many of each are in your project space and subtract that square footage from your wall paint square footage. Divide the new final number by 400 to get your best estimate for how many gallons of paint you’ll need for one coat on the walls and ceiling (minus the doors and windows you’re not painting).

How Much Paint Is Needed for Trim?

A room’s baseboards, windows, doors, and crown molding are often painted in a different finish or color than the walls and ceiling, so you can calculate your trim paint needs separately.

  • Add up the length of all the trim to be painted, then add up the width of all the trim. (You may need to do this by trim type if they’re not all the same widths.)
  • Multiply length x width to get the square footage of trim to be painted.
  • Divide the total by 400 to get the number of gallons of paint you’ll need for one coat. You’ll likely need less than a gallon for a standard room, so consider buying trim paint in a quart or two.

Pro2Pro Tip: If you’re painting the interior trim between windowpanes, they’re approximately 7.5 square feet of paintable space.

How Much Primer Do I Need?

Applying primer first helps the paint adhere properly to porous or unpainted surfaces like new drywall, allows for even paint application, and covers up stains. If you’re making a dramatic color switch, a tinted primer in a shade similar to your paint makes coverage easier. (Read more on picking the right primer for your project.)

Primer only covers 200-300 sq. ft. per gallon, so you’ll need slightly more primer than paint. Take your earlier total area and divide that number by 300 to get the minimum gallons of primer you’ll need for one coat.

Top Washington designers answer your most pressing questions.

How to estimate the amount of wallpaper needed

Why is the powder room a good place to try it?

It’s self-contained, so you don’t have to worry as much about a loud pattern clashing with other spaces. Plus, wallpaper can make this small room feel like an escape, says designer Alison Giese, who outfitted her own powder room with Thibaut’s “Luzon.” She says the vivid pops of aqua and coral remind her of her family’s previous home in Brazil. Not that adventurous? “I would go with a grasscloth or a textured, tone-on-tone pattern,” Giese suggests. “It feels a little more timeless than an in-your-face pattern.”

Peel-and-stick or traditional?

Wallpaper hanger Michael DiGuiseppe tells clients to order only traditional paper. Bubbles and creases are a constant plague when you’re trying to hang peel-and-stick, and you have to remove the entire strip to reposition it, he says. When you paint glue on a primed wall and apply dry paper, you can move it around and smooth it before it dries. Today’s papers are also easily strippable later on, DiGuiseppe adds.

How much should I expect to spend?

Wallpaper prices run the gamut. A roll from a big-box retailer such as Home Depot can cost less than $30, while made-to-order, hand-painted paper from companies such as Gracie or de Gournay can cost thousands. But generally, says designer Annie Elliott, “it is a bit of a splurge, which is one of the reasons so many people do it in powder rooms.” She recently outfitted one with Brunschwig & Fils’s “Battle of Valmy 1792.” The minimum two-roll order for that luxury brand tops $460, and a standard powder room requires about three double rolls. That’s before you pay a paper hanger—an additional cost of about $400 to $500, according to DiGuiseppe, who hangs paper for some of the area’s most prominent designers. Larger rooms can cost $900 to $1,200 or even more, depending on the paper and the intricacy of its pattern, he says.

If you go cool and bold with wallpaper, you can get away with just needing a mirror.

On the other hand, designer Erika Bonnell notes, wallpaper may actually save money: “If you dress your walls boldly in wallpaper, it removes other things that need investment, like art. In the powder room, if you go cool and bold with wallpaper, you really can get away with just needing a mirror.”

Can I hang it myself?

For an entire room, designers recommend hiring a professional to avoid costly mistakes, but the DIY approach works well for smaller jobs. Try it on the backs of bookcases or the back of a desk that floats in the middle of the room, suggests designer Pamela Harvey. Frame it as art or use it as a backsplash. If you buy paper on your own, make sure to confirm that all the rolls come from the same dye lot, says Elliott. If they don’t, the colors might vary from one strip to the next.

“Poppy” by Cole & Son. Designer: Erika Bonnell for clients in Wesley Heights. Photograph by Stacy Zarin Goldberg.

How do I find a contractor?

Local paint and hardware stores that stock wallpaper sample books can offer referrals. (See below.) Neighborhood listservs such as NextDoor are also a good place to ask for referrals.

Where can I shop locally and get more advice?

Casart Coverings, by appointment (Alexandria), 888-960-5554.

Color Wheel, 1374 Chain Bridge Rd., McLean; 703-356-8477.

Monarch Paint & Design Centers, downtown DC, 202-289-1601; Georgetown, 202-625-2600; Chevy Chase DC, 202-686-5550; Alexandria, 703-768-1975.

This article appears in the May 2019 issue of Washingtonian.

Whether you’re stuck dealing with temporary, strippable, or vinyl wallpaper, we know the easiest methods to bring them down and bare your walls once again.

By Kathleen Corlett | Updated Dec 16, 2021 1:40 PM

How to estimate the amount of wallpaper needed How to estimate the amount of wallpaper needed How to estimate the amount of wallpaper needed How to estimate the amount of wallpaper needed

How to estimate the amount of wallpaper needed

Q. We’ve just moved into our new home, and the previous owners left behind some bathroom wallpaper that has got to go. Unfortunately, we have no idea how long it’s been in place, or what to expect when taking it down. What’s the best way to remove wallpaper?

A: While scraping away the glued-on wallpaper of years past may seem daunting, it doesn’t have to be. The right tools and technique can greatly ease the amount of work you have to do. Of course, the exact tools and technique to use depends on what type of paper is up on your walls.

Follow these tips to determine whether the wall covering you’re dealing with is removable, strippable, or vinyl wallpaper, and how to take off wallpaper of that type.

Before you begin removing wallpaper of any kind, cover your floors.

Protect your precious hardwood or plush carpeting with drop cloths (non-slip canvas works best) and cover the baseboards with wide painter’s tape.

You’ll want to ensure that no peeled wallpaper strips or glue residue accidentally touches and sticks to these features as it comes down from the wall.

For temporary wallpaper removal, simply start tugging.

Removable wallpaper (also called temporary wallpaper) was designed to come down easily. Locate a corner of the paper, and give it a tug. If it pulls away from the wall easily, it is temporary wallpaper and will be fairly easy to remove.

Assuming the wall beneath the paper was painted in an eggshell, satin, or semi-gloss with a slight sheen and properly prepped and cleaned before installation, the paper should release from the wall with a careful pull at any of its seams.

Stand on a ladder and use a putty knife to unstick the top left corner of the wall (likely the first sheet of wallpaper to be installed). Once you have enough of the perimeter lifted to grasp, take the sheet between your fingers to continue removing it.

Note: If you like the pattern enough to place the wallpaper elsewhere within the house, aim to pull the sheets directly down rather than out from the wall in order to prevent curling and bending them.

How to estimate the amount of wallpaper needed

Hot water is the key to strippable wallpaper removal.

Strippable paper is more permanent but permeable, meaning that water can seep through and soften the adhesive for easy removal.

The easiest way to remove wallpaper of this kind is to fill a spray bottle or pump sprayer with hot water, and dampen the first panel thoroughly. After allowing it a few minutes to absorb, try peeling the panel back at its top left corner. If the paper lifts, great!

Removing wallpaper that’s strippable is best done one section at a time. Wet the first panel to confirm whether you’re working on strippable wallpaper. (If the paper does not yield to hot water alone, it could be that you’re looking at water-resistant vinyl wallpaper. In that case, proceed to the method outlined below.)

Proceed one panel at a time until the wall is bare.

How to estimate the amount of wallpaper needed

To remove wallpaper made of vinyl, you’ll need a scoring tool.

Removing vinyl wallpaper is not a difficult task, but it is a little more labor intensive than taking down strippable or temporary wallpaper. You’ll also need liquid fabric detergent and a wallpaper remover or scoring tool. Here’s how to remove wallpaper made of vinyl:

  1. First, roll a wall paper remover scoring tool, such as the WP Chomp Wallpaper Scorer, over the wall. This is the best way to penetrate water-resistant vinyl and reach the glue itself. Hold the tool against the wall and roll it from corner to corner, and from floor to ceiling in a random pattern. This tool’s tiny teeth create small slits that allow the liquid to seep in and loosen the glue.
  2. Next, help dissolve the glue by mixing 1/4 cup liquid fabric softener per gallon of hot water in a spray bottle or pump sprayer. Heavily saturate one section of wall at a time starting at the top left and working your way down.
  3. Wait 10 to 15 minutes, and begin peeling back damp wallpaper where the wall meets the ceiling. Once the glue softens you should have luck removing large pieces, but it’s still a good idea to keep a wall scraper handy to shave away strips of paper that do not come off in one continuous strip.
  4. Continue spraying the hot fabric softener-and-water solution onto the wall as needed, and you’ll spend less effort scraping. When you do use the scraper, take care to hold the tool so its blade is nearly parallel to the wall when you work so that you have fewer gouges to repair when you’re all finished.

How to estimate the amount of wallpaper needed

Once the wallpaper is lifted, scrub away residual glue.

Wash the walls with warm water and a large non-cellulose sponge frequently as you go to remove residual wallpaper glue. Otherwise, any glue dries will require rewetting and a little extra elbow grease to remove later.

Removable wallpapers leave minimal residue behind, but could still use a cleaning. To tackle most other glues, you’ll need a bucket of hot water, liquid dish soap, and a tablespoon of baking soda—as well as an extra cup of vinegar for every gallon of water on standby if the adhesive is particularly stubborn.

  1. Soak the sponge and wring out most of the water before rubbing the solution into the sticky leftovers.
  2. Once the adhesive softens enough to scrape it with your fingernails, wipe as much as you can away with a clean rag. Then, scrape up the tough stuff with a putty knife.
  3. Clear the adhesive until not a speck remains, because even one lump can mar the appearance of a fresh paint job. Finish with a quick and easy clean.

How to estimate the amount of wallpaper needed

Final Thoughts

Removing old wallpaper is not a difficult task for DIYers to complete, but spraying the walls and peeling off strips of paper can get a little messy. Covering your floors with a drop cloth makes cleanup a lot easier—simply collect all of the discarded wallpaper strips on the cloth, and then dump them into a trash bag. You’re well on your way to giving your walls a new look!

How to estimate the amount of wallpaper needed

How to estimate the amount of wallpaper needed

Deane Biermeier is an expert contractor with nearly 30 years of experience in all types of home repair, maintenance, and remodeling. He is a certified lead carpenter and also holds a certification from the EPA. Deane is a member of The Spruce’s Home Improvement Review Board.

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How to estimate the amount of wallpaper needed

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Wallpaper can be difficult to apply because you need a smooth surface for sliding these large sheet goods into position. And wallpaper is almost always difficult to remove since it has a tendency to grab onto the wall and not let go.

But there is a product that is simple to apply and that helps with both wallpaper application and removal: wallpaper primer. Wallpaper primer helps you hit that sweet spot where the wallpaper sticks well to the wall but not so firmly that removal will damage the surface.

What Is Wallpaper Primer?

Wallpaper primer, sometimes called wallpaper sizing, is a liquid acrylic–based barrier that is applied under wallpaper to assist with installing the wallpaper and with removing the wallpaper at any later time.

What Wallpaper Primer Does

Wallpaper Installation

Wallpaper primer fills pores in absorbent surfaces, creating a smoother surface for sliding the wallpaper into position. Flat, matte, or uncoated walls—and even eggshell gloss paints—can create a drag that makes it harder to slide wallpaper and position it.

Wallpaper primer allows more of the wallpaper glue to do its job, rather than being immediately absorbed by the wall’s pores.

Wallpaper Removal

By providing a shield between the wallpaper glue and the wall, wallpaper primer makes removal easier. Wallpaper glue tightly bonds with its substrate. The more pores available, the greater the bond. Wallpaper primer fills those pores.

Wallpaper primer will not make wallpaper removal completely effortless nor will it ensure that the lower surface remains in pristine condition. But wallpaper primer does make a difference between taking down wallpaper or taking down wallpaper along with lots of paper facing and gypsum core.

How to Know If You Need Wallpaper Primer

Water absorption is one of the key factors in determining whether you should use wallpaper primer. So, it helps to test out the wall with a small amount of water to gauge the rate of absorption.

With clean, clear water in a bowl, flick a few drops of water onto the wall and rub in some of the drops. If the wall turns dark, that means that the surface is quickly absorbing water and likely requires wallpaper primer.

Other factors influence the decision, including paint gloss, age and condition of the paint, and the presence of primer or dust.

Flat or Matte Paint Gloss

Flat or matte paints always need wallpaper primer. Glossy and semi-gloss paints in good condition do not absorb moisture well, so they may not need wallpaper primer.

Paint glosses in the mid-range may or may not need primer. Satin and eggshell glosses have enough sheen to shed some water for a limited time. With these glosses, it’s safest to use wallpaper primer.

Old or Poor Condition Paint

Even glossy surfaces that are older can benefit from the application of wallpaper primer because they may have lost some of their gloss. Over time, paint breaks down, especially when subjected to UV rays, even indoors.

Uncoated Walls

Use wallpaper primer on any bare, uncoated surface, especially unprimed, unpainted drywall.

Primed Walls

Walls that have only paint primer should be primed with wallpaper primer. Paint primer is flat, so it will readily soak up the wallpaper glue.

Dusty Walls

Walls that are dusty with drywall or plaster dust can benefit from wallpaper primer. While you should always try to clean off as much dust as possible before applying wallpaper, the wallpaper primer can help absorb and neutralize the dust and help the wallpaper glue stick better.

Assists with removal

Helps preserve walls and paint

May be unnecessary with glossy walls

Can be difficult to find

Applying Wallpaper Primer

To apply wallpaper primer, you’ll need many of the same tools you’d use to apply wallpaper: sandpaper, a paint tray and liners, a paint roller with covers, a paintbrush, a putty knife, a screwdriver, and clean rags. You’ll also need wallpaper primer and drywall compound or spackle.

Remove Obstructions

Unscrew all wall plates, outlet covers, lights, and any other obstruction on the wall.

Sand Bumps and Fill Gaps

Rub your hand on the wall to feel for bumps or use a straight edge. Lightly sand down bumps with fine grit sandpaper. Fill gaps with drywall compound or spackle.

Clean Surface

Wipe down the walls with a damp cloth. The cloth should be wrung out as much as possible. Afterward, open windows or turn on a fan to dry the walls.

Cut in Corners

Open the can and soak the end of the brush in the wallpaper primer. With the brush, cut in the corners with the wallpaper primer.

Roll on Wallpaper Primer

Pour wallpaper primer into a lined paint tray. Soak the roller cover in the product, then roll it out on the paint tray before applying to the wall. Apply one thin coat to the wall, making sure to meet up with all cut-in sections and not leaving any gaps.

Wait Before Wallpapering

Wallpaper primer dries to the touch in 30 minutes, but allow a full 24 hours of curing time before applying the wallpaper.

What is Area?

In geometry, the area can be defined as the space occupied by a flat shape or the surface of an object. The area of a figure is the number of unit squares that cover the surface of a closed figure. The area is measured in square units such as square centimeters, square feet, square inches, etc.

The area of the squares below, with unit squares of sides 1 centimeter each, will be measured in square centimeters (cm²).

How to estimate the amount of wallpaper needed

Here, the area of the shapes below will be measured in square meters (m²) and square inches (in²).

How to estimate the amount of wallpaper needed

The origin of the word area is from ‘area’ in Latin, meaning a vacant piece of level ground. The origin further led to an irregular derivation of area as ‘a particular amount of space contained within a set of boundaries’.

We often find the area of the room floor to determine the size of the carpet to be bought. Covering the floor with tiles, covering the wall with paint or wallpaper or building a swimming pool are other examples, where in the area is computed. Common simple shapes and polygons have their own formulae for calculating area. Here’s how area of common 2-D or Two-dimensional shapes is computed:

Two-Dimensional Geometric Shapes:
Name of the shape: Picture of shape: Area Formula:
Circle Area = πr², where r is the radius.
Triangle Area = bh, where b is base, And h is height.
Square Area =l × l, where l is the length of each side.
Rectangle Area = l × w, where l is lengthand w is width.
Parallelogram Area = b × h, where b is base,and h is perpendicular height.
Trapezium Area= (a +b)h , where a and b are lengths of the parallel sides, and h is perpendicular height.

In real life, not every plane figure can be clearly classified as a rectangle, square or a triangle. To find the area of a composite figure which consists of more than one shape, we need to find the sum of the area of both or all the shapes forming the composite figure.

The area of the outside surface of a solid or three-dimensional shape is called Surface Area. For instance, a rectangular prism has 6 rectangular bases and lateral faces. So, the total surface area is the sum of the areas of all the 6 rectangles.

Fun Facts
– Among all the shapes with the same perimeter, a circle has the largest area.

Let’s sing!

To plant vegetables in the garden backside,Find the area of the field – the whole of inside.Multiply its length with how much it is wide,And, that’s the area formula, you have applied!

Let’s do it!

Instead of handing out math worksheets on the area to your children, involve them in home improvement projects. Inform them about the room that you are considering to paint. Ask them to calculate the total surface area of the walls, in order to find how much paint is required. Discuss how all walls of the room may be different and thus, taking overall measurements and then subtracting the area of the door, windows or book shelves, will help in estimating the amount of paint needed. You can also ask to consider finding the total surface area of a present that they wrapping in order to find the amount of wrapping paper required.

Average Cost

The U.S. Department of Education requires each institution that participates in federal financial aid programs to determine the annual nine-month cost of attendance at that particular institution. These figures are used to calculate eligibility for financial aid programs and are based on average costs incurred by students attending that particular institution. The categories used to calculate the cost of attendance are outlined in federal regulation.

For the 2022-2023 academic year (Fall 2022 and Spring 2023 semesters), the average cost of attendance for a full-time student paying the in-state tuition rate is:

Undergraduate Graduate
Tuition and Fees*: $12,208 $11,044
Books and Supplies: $1,150 $900
Housing and Meals**: $11,392 $11,996
Transportation: $3,280 $3,280
Personal/Miscellaneous: $1,926 $2,022
Total $29,956 $29,242

*Tuition and fees for Accelerated Online programs vary by program.

**This figure is for students living on or off campus but not with parent(s) or other relative(s). For undergraduate students living with parent(s) or relative(s), the annual housing and meals allowance is $4,984.

To determine the average amount of tuition and fees for students paying full-time non-resident tuition and fees, undergraduate students should add approximately $15,286 to the tuition and fees listed above. Graduate students paying the full-time non-resident tuition and fee rate should add approximately $12,442 to the tuition and fees listed above.

These figures are to be used for planning purposes only and are not reflective of actual tuition and fees incurred by an individual student. The figures may also be used in the self-certification process for private student loans.


The information you report on your FAFSA is used to calculate your Expected Family Contribution (EFC). Your EFC is calculated according to a formula established by law and is not the amount of money your family will have to pay for college, nor is it the amount of aid you will receive. It is a number used by the Office of Financial Aid to calculate how much aid you are eligible to receive.

The amount of financial need you have determines which financial aid programs you are eligible for. Your financial need is calculated using the formula below:

Cost of Attendance (COA) – Expected Family Contribution (EFC)= Financial Need

Watch the video below to learn more about how financial aid offices calculate financial need.

Q: Isn’t it easier to paint a room than to wallpaper it?

A: Although both wallpaper and paint liven up dull rooms, wallpaper has special advantages. It can camouflage flawed or damaged walls, soften rough or irregular architectural features, and unite awkward angles. Wallpaper also offers combinations of colors, patterns, and textures that would be nearly impossible for the do-it-yourselfer to duplicate with paint.

Q: Isn’t wallpaper more expensive than paint?

A. Yes. One roll of wallpaper, which covers about 30 square feet, might cost around $35. For the same amount, you could buy a gallon or more of premium-quality paint, which would cover approximately 400 square feet. Consider wallpapering just one wall as an accent to keep costs low.

Q. What are my options?

A. The most popular choices for do-it-yourselfers are vinyl and vinyl-coated wallpapers. They tend to be the least expensive, the most durable, and the easiest to apply and remove. There are other types of coatings — such as foil, grass cloth, flocked, and embossed — but these are more expensive and trickier to hang. In a high-traffic area, consider the “cleanability” of the paper. Washable papers can be wiped only occasionally with a damp sponge. A scrubbable paper can take more frequent and vigorous cleaning. Check the label and instructions for your paper.

Q. Should I get prepasted or unpasted wallpaper?

A. As its name suggests, prepasted paper has paste already applied to its back. To activate the paste, soak the paper in water. With unpasted wallpaper, you apply the adhesive yourself.

Q. How do I know how much wallpaper to buy?

A. Calculate the room’s square footage by measuring the length of all the walls, adding those together, and multiplying by room height (excluding baseboards and moldings.) Round up measurements and do not deduct for doors, windows, or other openings. This will allow leeway for pattern matching and trimming. Divide the room’s square footage by the coverage of a single roll (normally 27-30 square feet, but check the figure for the paper you select). This will tell you how many rolls you need to buy; round up to the nearest roll.

Q. What is a repeat?

A. It’s the distance from the center of one pattern to the center of the next. It could be an inch, a foot, or more. The size of the repeat affects how much wallpaper you’ll need to buy so you can match patterns throughout a room. A large repeat (6 or more inches) may require extra paper, especially if you make some mistakes.

Wallpaper: Getting Started

Q. Are some rooms easier to wallpaper than others?

A. Yes. If you’ve never wallpapered, start with a long hall or a square room with few breaks in the walls. Kitchens or bathrooms, though smaller, tend to have more twists and turns to paper around, making them more difficult. A bedroom is a good choice for a beginner.

Q. Can I paper over any wall?

A. Just about. Wallpaper will adhere to drywall, new and old plaster, concrete, masonry, and paneling. You can even wallpaper over slick, nonporous surfaces, such as tile, concrete block, or synthetic laminate paneling. On many of these surfaces, you’ll first need to apply lining paper, which is a blank wall covering that provides a smooth surface for regular wallpaper. No matter what the surface, the key to success in wallpapering is proper preparation of the walls.

Q. How do I prepare the walls?

A. The wall surface should be clean, dry, and free of mildew, grease, stains, and loose paint. Close your eyes and run your hands along the wall. Any bumps you feel will show up after you paper, so sand them down. Repair small holes, cracks, and other blemishes with surfacing compound, then sand and wipe clean. If you face a lot of repairs, consider using lining paper. You’ll also want to apply a wall covering primer/sealer — preferably tinted to match the background color of the new wallpaper — which will hide tiny gaps.

The primer protects the wall, helps the wallpaper bond to the surface, and makes it easier to move the paper into position. And if the day comes when you want to remove the paper, the job will be easier if you’ve used a primer. This is particularly true for new drywall that has been given only a thin coat of paint. If you don’t prime properly, the wallpaper adhesive will bond with the drywall paper. Later, when you remove the wallpaper, you may pull away the drywall paper, too. Be sure to buy a primer specifically designed for wall coverings, not a paint primer.

In determining the age of wallpaper, the most reliable clues are the signs of the technology used to make it. Distinguishing handmade paper from machine-made, and traditional block printing from machine printing can help determine the date a paper was made. Information about the age of a wallpaper can, in some cases, help to establish the date of a wall or of architectural changes within a building.

Wallpaper manufactured before ca. 1835 consisted of small sheets of paper, pasted together to form the length long enough to extend from floor to ceiling. The special class of paper known as “hanging paper” was described in the 18th century as “made from the coarsest and cheapest rags and woolen stuff.” It was rarely bleached white, but by modern standards it was of high quality and strong. The size of handmade paper was limited by the size of the mold. The mold was made up of two parts, a deckle and a frame, and was limited to a size that could be easily handled (figure 1).

Figure 1: Making Paper—An English engraving printed for F.C. and J. Rivington in 1821 shows a papermaker plunging his mold into a vat filled with pulp made from old rags, water and other ingredients. He is about to scoop a small quantity of pulp and water onto the wire surface of the bottom half of the mold known as the “frame.” The “deckle” or top half of the mold will then hold the pulp mixture in place while the water drains out and the pulp has dried. The product will then be further dried, pressed, and flattened in the press seen at the left, and finished as paper. In this process, the mold could be no larger than the papermaker could handle and that, in turn, restricted the finished size of a sheet of paper. (Author’s Collection)

The individual sheet that made up a “piece” or a roll of wallpaper were not uniform in size, but usually were smaller than 22 by 32 inches. Early in the 18th century, most paper “stainers” printed sheets which were then pasted individually to a wall. But by mid-century, the sheets were usually pasted together to form rolls before any coloring was applied. The standard length of a “piece” of joined wallpaper, formed from the individual sheets, was established by English excise officials at 12 yards and most were 23 inches wide.

Horizontal seams in a length of wallpaper are good evidence of handmade paper (as described above) and likely suggests that it predates ca. 1835. Such seams are the first item to look for, and this can be done by shining a strong beam of light, held close to the wall, horizontally across the surface. Under this raking light almost any irregularity on the wall should become apparent in the resulting shadows. Indications of seams between the sheets and between the lengths of wallpaper could appear, even under a coat of paint. However, if subsequent layers of paper have been applied over a handmade paper, evidence of seams could be hidden by the smoother surfaces.

If an edge of the paper can be uncovered, evidence of the handmade process might be indicated by the slightly ruffled or “deckle edge” caused by the uneven drainage of the water from the top half of the mold (called the deckle). Although for stationery and other fine papers, deckle edges are sometimes imitated on machinemade products, there is no evidence that this was ever done on hanging papers.

If only small fragments of paper are found, examination under magnification will distinguish between the multidirectional patterns of the fibers characteristic of the handmade process, or the regular vertical alignment of machine-made paper. The paper should also be examined over a strong light for the imprint of the wires that made up the surface of the frame on which the pulp was pressed under the deckle to form the sheet. Other characteristics of handmade paper which might appear include watermarks, sometimes visible in areas where opaque coloring has not been thickly applied to the paper, and tax stamps. A royal insignia would indicate that the paper had been printed in England previous to the repeal of the tax laws there in 1832 (figure 13).

Figure 2: Stenciling with Block Printing—An early 18th-century French pattern printed in black with stenciled washes of red, green, yellow and blue, is shown here in a piece 14 inches wide and 20-3/4 inches high. (Courtesy of the Cooper-Hewitt Museum, New York)
Figure 2A: Detail of early 18th-century French wallpaper shown in 2, which shows the thin-bodied, poorly registered stenciled coloring. (Courtesy of the Cooper-Hewitt Museum, New York)

Machines for producing “endless” paper were the important innovation of the early 19th century that made possible the industrialization of wallpaper making. Developments in England included the Fourdrinier machine of 1799 that used a cylinder to form paper. In 1817, the first machine-made paper was produced in America by Thomas Gilpin in Delaware. Though wallpaper manufacturers would have been the logical early users of the new endless paper, they do not seem to have adopted it in France until 1820, in England until 1830, and in this country not generally until 1835. The widths of machine-made paper varied from country to country. By the 1850’s the standard width of French paper was 18 inches, of English paper 21 inches (20 inches when hung) and of American paper 20 inches. Despite standardization, papers from all these have been found in widths varying from 18 to 40 inches.

Early handmade papers were composed of textile fibers and were generally heavier and more durable than later machine-made papers. The introduction of wood pulp for making paper was first commercially successful in England in the 1850’s, and was introduced to America in 1855. By the 1880’s, the bulk of commercial hanging paper stock had been greatly cheapened by the introduction of wood pulp, straw, and other less expensive ingredients. Such paper is now characteristically brittle, and browned from the acids present in the wood pulp. Superficial examination usually serves to distinguish cheap, machine-made papers from the handmade, that is; machine-made paper will tear in a neat line and the browning and brittleness are often all too apparent. But further microscopic examination may be required to determine if a fragment of higher quality paper with a high rag content is machine-made or hand-made.

A few wallpapers, generally the more expensive ones, including Chinese papers, have been hand painted through all of wallpaper history (figure 17). The brush strokes were executed in water base colors. Stylistic analysis, rather than a knowledge of technology, will be of the greatest help in dating painted papers. Chemical analysis of the pigments used in the paints might serve to pinpoint datable pigments (some of which are discussed in the following section on block printing).

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How to estimate the amount of wallpaper needed

Maybe your child has outgrown the baby-colored wallpaper in the nursery. Maybe you bought a house that hasn’t been updated since geese wallpaper was in vogue. Whatever the reason, when you just can’t stand a certain wallpaper, it’s time to remove it. Learn how to remove wallpaper safely, and how to paint the wall underneath.

Step 1: Prepare the Space

This is an obvious step, but you’d be surprised by how many people want to skip it. Taking the time to get your space ready before you begin will ensure you won’t ruin other areas of your home — or be forced to pause in the middle of your wallpaper removing groove. Remove curtains, outlet covers, switchplates, and artwork. Lay a drop cloth down on the area where you’re going to be working.

Step 2: Test the Wallpaper’s Adhesion

Starting at a corner or seam, peel the wallpaper away from the surface. If it comes up easily and doesn’t tear the underlying drywall paper, you may be able to simply pull the wallpaper away from the entire wall.

Step 3: Make the Solution

If Step 2 doesn’t work, fill a pump sprayer halfway with hot water from your sink and the other half with boiling water. You can also add fabric softener if your wallpaper becomes difficult to remove. A 1:1 mixture of water to softener should work.

Step 4: Spray the Walls

Using your pump sprayer, saturate the wallpaper, spraying the walls evenly. Once the wallpaper begins to bubble, you can begin removing the wallpaper. (You can also rent a steamer and use it to soften wallpaper adhesive.)

Step 5: Remove the Wallpaper

With a wide putty knife, scrape the wallpaper. Start at the seams and bubbling sections. Be careful not to gouge the wall surface. If you have stubborn wallpaper, you may have to repeat the above process several times. Repeat until you’ve finished the room.

Step 6: Clean up the Leftovers

You’ll likely have to deal with residue. Make a mixture of very hot water and a small amount of tri-sodium phosphate (TSP). Use the mixture with a large sponge, and wipe down the walls. Spray or wipe your walls with clean water one final time. Let the walls sit for a few days to completely dry.

How to estimate the amount of wallpaper needed

All that hard work removing the old wallpaper likely left scarring and pitting on your walls. Before you can paint the wall, you’ll need to bring your wall back to smoothness.

Step 1: Sand the Walls

If you have any rough spots, lightly sand the areas until they’re smooth.

Step 2: Patch the Walls

Check for any damaged areas, including holes and cracks. Using drywall mud and a putty knife, fill in those holes. Wait until they dry, and then sand those areas for a smooth surface.

Step 3: Prime the Walls

Once the surface is smooth, apply a coat of high-quality latex primer with a roller or paintbrush. This will give you a smooth surface for your paint.

Step 4: Paint

New Life Painting

If any part of the DIY aspect of removing wallpaper and painting seems a bit much, New Life Painting can help at any step of the way. We specialize in wallpaper removal, as well as interior painting. Once you receive a free consultation and sign a contract, you’ll also get complimentary color consultation from a color analyst to ensure you love your space. Give us a call at (805) 937-9836, or contact us online.

How to estimate the amount of wallpaper needed

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Sizing is a substance which you can apply to walls as part of your preparation before hanging wallpaper. Depending upon what kind of walls you have and what preparations you’ve already made, applying sizing is a largely optional step. However, sizing offers many benefits, and there are many situations in which adding sizing could greatly benefit you.

Benefits of Sizing

Applying sizing changes the quality of your walls to make wallpaper application easier. Sizing creates a slippery, slightly glossy surface on your wall. This texture will make it easier for you to move the pieces of wallpaper around as you install them, since they slide into place more readily. Sizing can also help the wallpaper grip the wall better, and additionally make it easier to peel off wallpaper later should you decide to remove it. Sizing is applied like paint, using a paint roller.

Paint Sheen

You shouldn’t apply wallpaper to bare drywall, and so you’ll be applying wallpaper to walls that are either primed or painted. If there is a coat of paint on the walls before you wallpaper, then the sheen of the paint determines how easy it is to install the wallpaper: High-gloss sheens allow paper to slide more easily than flat or matte sheens. If your wall has a flat or matte coat of paint, then sizing makes the wall more amenable to wallpaper. Walls with glossy paint will already be very smooth. However, the slick surface created by sizing is better and easier to work with than relying on the smooth surface of glossy paint, and so you may want to use sizing anyway. If you do, lightly sand the walls to help the sizing stick better.

Applying Primer

One of your options for preparation is applying a primer to the wall prior to wallpapering. Primers seal the wall and protect it against moisture; excessive moisture can cause the wall to deteriorate and can cause paint beneath the wallpaper to become too soft. They can also prevent the wallpaper adhesive from soaking into the wall, thus making it difficult or impossible to remove the wallpaper later. If you use a primer, you don’t need sizing, but it helps to use sizing over primer anyway, since you still gain the benefits of easier positioning and easier removal later. Some primers are a combination primer and sizer.

Plaster Walls

If your walls are plaster instead of drywall, then it’s not necessary to use paint or primer to protect the walls from the wallpaper. Plaster walls lack the paper facing that drywall has, and so won’t absorb as much water or deteriorate with excessive moisture. However, plaster walls do require sizing. In the case of a plaster wall, sizing not only helps with moving and adjusting the paper more easily, but it prevents the wall from soaking up too much water from the paper too quickly. On plaster, sizing has the additional effect of sealing in stains.

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How to estimate the amount of wallpaper needed


  • How to Change Your Monitor’s Resolution When it Is Too High to Display
  • What Size Image Fits the Wallpaper Screen on an iOS 7 iPad Mini?
  • How to Align the Windows in Two Monitors
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  • How to Get Two Wallpapers on Two Monitors

Using dual monitors makes it convenient for the small business owner to work within multiple programs or windows at the same time. Unfortunately, Windows 7 doesn’t handle dual-monitor wallpaper very well, with no default option to fit a single wallpaper across two screens. With a bit of simple customization, you can manually set the wallpaper to display across two monitors.

Determine the Resolution

Before setting up your wallpaper, you need to know the resolution of your dual-screens. Right-click an open space on your desktop and select “Screen Resolution.” Write down the resolution of display 1, then click display 2 and write that resolution down. Since you’re stretching one wallpaper over both monitors, add the horizontal resolutions together, but not the vertical resolution. The horizontal resolution is the larger number listed first. For example, if one monitor’s resolution is 1360-by-768 and the other screen’s resolution is 1280-by-768, add 1360 and 1280 for a final resolution of 2640-by-768.

Find Wallpaper

Now that you have the total resolutions of your monitors as one, you can find wallpaper made specifically for that resolution. Open a Web browser and search your favorite search engine for “2640 x 768 wallpaper,” replacing the numbers with your own resolution. The advantage to this over resizing existing wallpaper is that the wallpaper you’ll find online was specifically created for your resolution, so you don’t need to resize the wallpaper to make it fit. Once found, save your desired wallpaper to an easily remembered place on your computer.

Resize Existing Wallpaper

If you already have an image you want to use as your dual-monitor wallpaper, you can alter its resolution instead of trying to find and download the right size online. Click the Windows Start orb and type “Paint” into the search bar, pressing “Enter” when Paint displays. Click the blue drop-down menu in Paint’s upper-left corner and select “Open,” then find and open your wallpaper. Click “Resize” under the Image section of the toolbar. Switch to “Pixels” at the top and remove the check next to “Maintain aspect ratio.” Type the sum of the two resolutions you added into the “Horizontal” and “Vertical” boxes, then click “OK.” Save the image and close Paint.

Set the Wallpaper

Right-click an open area on your desktop and select “Personalize.” Click “Desktop Background” near the bottom of the window. Select “Browse” and find the folder containing your wallpaper. Click the wallpaper to activate it, then choose “Tile” under “Picture position.” All of the other Picture Position options display the wallpaper twice, once on each monitor. If you downloaded or set the correct resolution, the image should fit perfectly across both screens. Click “Save changes” when you’re finished.

Matt Koble has been writing professionally since 2008. He has been published on websites such as DoItYourself. Koble mostly writes about technology, electronics and computer topics.