How to build a pyramid trellis

Introduction: Garden Pyramid Trellis

How to build a pyramid trellis

How to build a pyramid trellis

How to build a pyramid trellis

Hiding under all of those bright blue morning glories in the center of the garden is a pyramid tower, built using 3 composite plastic fan trellises I bought at the local hardware store. Building this trellis takes 15 minutes or so and costs approximately $40.00. The tower can be used for any flowers and vegetables that love to climb.

Step 1: Materials List

Here’s the list of materials I used to build the pyramid tower (you can find these items at most hardware stores and garden centers):

* 6 ft. fan trellises, wood or composite plastic–3 each (when growing plants such as hops that climb more than 20 feet, consider building a tower that is 12 feet high or taller)

* 9 inch plastic wire ties–9 each

* 6 inch terra cotta or plastic flower pot

* Paint (optional)

* Scissors

Finished pyramid can be used unpainted, but it’s easier to paint both sides of the fan trellises before assembling the pyramid.

Step 2: Fastening & Painting

With the wide ends of the trellises down, hold the narrow ends of 2 trellises upright and join them tightly together with a wire tie where they meet. Be sure the wire tie is above the horizontal pieces, not below (see photo). Continue joining the 2 trellises together with wire ties for the next 2 sections, just above each horizontal piece of wood or plastic. Trim excess from the end of the wire tie after you pull it tightly to join the trellises securely. A wire tie can be added above the fourth (last) horizontal piece, but it isn’t necessary because this section will be at ground level when it’s in the garden.

After the first 2 trellises have been joined together, add the third trellis and fasten at each of the 3 horizontal pieces on both the left and right sides.

As I mentioned earlier, painting is optional, but it’s definitely easier to do before assembling the tower, and it gives the trellis a complete finished appearance.

That’s the last step. Now it’s time to find a place in the garden.

Step 3: Garden Focal Point

After assembling and painting, I carefully anchored the 3 corners into the loosened soil by carefully stepping on the bottom horizontal pieces. Using too much force could break or damage the wood or plastic. Hops are growing in this photo. The tower easily supported the weight of the climbing vines, but the hops needed a much higher tower than 6 feet. Flowers and vegetables such as morning glories, clematis and beans are perfect for this trellis, and I’m sure there are many more that can be used.

This trellis was built four years ago and it’s just as strong as when I built it. During the winter months, it lives out-of-the-way in a corner of the garage since we often have snow, ice, and high winds. Eventually, it may need to have a wire tie replaced and a fresh coat of paint, but for now, it creates a nice backdrop focal point in the sun garden.

How to build a pyramid trellisWe have been having the most glorious spring weather here at the Crossroads for the past two weeks, and we have gotten outside and built these wooden pyramid shaped trellises for the garden. You see, each year we like to change things up in the garden and during this past winter, I had a vision of putting pots of flowers and/or small trellises in each raised bed. Making these trellises was a family affair since Leo’s brother Jim and his wife came over and with their help, we were able to construct 6 of these trellises in one day.

If you remember, we made four 8 foot tall DIY WOODEN GARDEN OBELISKS two years ago, and we based our design for these smaller wooden trellises on those. Here is a list of supplies that you’ll need to build one of these smaller trellises.

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  • Two 8 foot pieces of 1 1/2″ x 1 1/2″ slats
  • Three 8 foot pieces of 1″ x 1 1/2″ slats
  • small box of 1 5/8″ drywall screws
  • miter saw
  • drill
  • quart of wood stain
  • staple gun

How to build a pyramid trellisIt’s a good idea to prestain all of your wood before cutting and assembling, and after you put your trellis together, you can go back and touch up. Here Jean is staining the first trellis that we built to use as our prototype. Please keep in mind that none of us would ever profess to be professional carpenters, and since these obelisks are, after all, for the garden, we weren’t too concerned with creating a perfect structure since flowering vines will be covering any obvious flaws.

How to build a pyramid trellisIt’s a good idea to go ahead and precut all of your individual pieces before assembling. Start by cutting the two 1 1/2″ x 1 1/2″ slats into two 4 foot pieces which will give you the four legs of your trellis.

How to build a pyramid trellisTo create the cross pieces, you’ll need four 12 inch pieces from long point to long point cut from the 1′ x 1 1/2″ slats. Set your miter saw at a 45 degree angle in one direction and make the cut, and then set the saw at 45 degrees and miter the opposite end of the cross piece so that the ends will fit together.

Then you’ll need to repeat the same step to create the next set of cross pieces but cut them 8 1/2 inches long.

How to build a pyramid trellis

Finally, you’ll need four 5 1/2 inch pieces to make the top piece.

How to build a pyramid trellisTo make it much easier to work with, we preassembled the top portion using a staple gun. Now keep in mind, a professional carpenter would design and build a finial for the top but we purposely made the top square in order to put a birdhouse or other ornamental fixture on the top.

How to build a pyramid trellisTo avoid splitting the wooden pieces when inserting the screws, it’s a good idea to predrill your holes about 1 1/2″ from each end. Be sure to use a drill bit smaller than the screw!

How to build a pyramid trellisOK, now you’re ready to put it together. Lay 2 of the legs on a flat surface as seen in the photo above. Measure 18 inches from the bottom of each leg and screw the first 12 inch cross piece onto the legs. Measure 18 inches up on both legs and screw in the 8 1/2′ cross piece.

Set that piece aside and repeat the process using the other two legs.

It’s going to take two people to do the next step. Stand up both sets of legs and slide the square top onto the top of the trellis and insert screws to attach the top to the legs. Use a little caution here because the trellis is very unstable until you attach the remaining slats on the other two slides which is your next step.

How to build a pyramid trellis

After Leo and Jim made the first prototype, I suggested that we cut two additional 30″ pieces from the 1′ x 1 1/2″ slats to add additional decorative supports onto which vines could climb. We only added them onto two sides as you can see in the photo above, but you can customize the trellises any way that you wish.

How to build a pyramid trellisSince we didn’t use treated wood to make the trellises, we stained them using this solid wood stain by Olympic that we had left over from staining the picket fence panels that we put at the ends of our FREESTANDING DECK IN THE GARDEN that we built last year.

How to build a pyramid trellisI’m sorry that I cannot give you the exact color that we used because the label on the can has faded but it is such a pretty color.

How to build a pyramid trellis

So pretty that I decided to stain some terracotta pots with the amount I had left over from painting the trellises! Remember my original vision that I had of having pots and trellises in the raised beds?

How to build a pyramid trellisIt’s coming true thanks to Jim and Jean’s help in getting these wooden pyramid shaped trellises made for the garden!

How to build a pyramid trellisAnd look how cute this rusty watering can looks on the top on one of the trellises. I can’t wait to get some flowering vines planted underneath these wooden pyramid shaped trellises in the garden! Hurry spring!

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