How to Build a Freestanding Garden Trellis (2024)

A garden trellis is one of the few landscaping elements that blankets itself with flowers and foliage. Agarden trellis brings a welcome sense of peace and serenity to your property.

With basic tools, inexpensive materials, and a free day or two, you can build a simple garden trellis that will add grace and charm to your home. Because a garden trellis slowly grows over time as it hosts beautiful flowers, vegetables, and vines, it ages well and can add long-term value to your property.

Trellis

A trellis is a horizontal structure meant to support vines and other vegetation on lattice work. A freestanding trellis is not attached to the side of the house.

Before You Begin

With this project, you'll learn how to build one section of trellis that is 8 feet long and about 6 feet high. This is an entirely scalable project, too. For a longer trellis, simply add more 8-foot sections.

Adopting a fewqualities of a boundary fence, this garden trellis stands independent of other structures. This is a significant advantage over trellises that are built on the side of a house, as creeping vegetation can harm a house's exterior siding.

You may wish to position the trellis westward or southward so that the plants can gain better sun. Or if you like the look of a trellis against a house, you can erect the trellis a foot or two away from the house. You get the same visual effect with none of the damage that comes with plant-to-house contact.

Check with your local permitting office about permits for building a garden trellis in your yard. Some communities may consider a trellis to be a fence or part of a fence, which may trigger permit requirements.

When to Build a Freestanding Garden Trellis

The conventional time to build outdoor pieces like garden trellises begins in early spring and runs throughout the summer. Post holes must be dug, which can be difficult in frozen ground.

Safety Considerations

Building a freestanding garden trellis requires you to dig deep fence post holes. Call 811 before digging for a free utilities location service to visit your yard and mark electric, gas, water, and other vital services buried in the yard.

What You'll Need

Equipment / Tools

  • Posthole digger
  • Bubble level
  • Hammer
  • Hand saw or electric miter saw
  • Galvanized exterior grade nails
  • Exterior grade screws

Materials

  • 2 4x4s: 4 inch x 4 inch x 8-foot pressure-treated lumber
  • 7 1x2s: 1 inch x 2 inch x 8-foot lumber
  • 2 2x2s: 2 inch x 2 inch x 8-foot lumber
  • 14 Lath: 5/16 inch x 1-1/2 inch x 8-foot wood lath
  • 4 2x4 galvanized flat rail fence brackets
  • 2 Bags of quick-set concrete
  • 2 Post covers for 4x4s
  • 2 Bags of all-purpose gravel

Instructions

  1. Dig Holes

    Each section of the trellis is anchored at both ends by fence posts. As with building a fence, begin by digging two holes with the post-hole digger. Situated eight feet apart, the holes should be about 9 inches wide by 2-1/2feet deep.

  2. Set Posts

    Pour all-purpose gravel into the holes until you have reached about six inches of gravel. Tamp down the gravel with one of the 4x4 posts. Set the 4x4 post in one of the holes and pour the quick-set concrete into the hole, around the post.

    Pour clean, cool water into the hole up to the ground level or per the instructions listed on the concrete bag. Use the bubble level to ensure the post is plumb. Prop up the 4x4 securely for four hours for the concrete to cure and fully set.

    Repeat for the second post.

  3. Attach 2x2s to the Posts

    Cut each of the two 2x2s to 5 feet long.

    Attach two ofthe2x4 galvanized flat rail fence brackets to the inside of one post and two to the other post. Situate them so that the top brackets are about a foot below the top of the post and the bottom brackets are about a foot above ground level.

    Attach the 2x2sto the insides of the 4x4 posts, so that they are resting inside of the brackets. Place each one so that it is about 6 inches lower than the height of the posts.

    Screw through the holes in the brackets to secure the 2x2s.

  4. Attach Horizontal Slats

    Nail all but one of the lath strips horizontally to the 2x2s, spacing them out by about five inches. Begin with the top strip and bring it to level with the bubble level. Next, nail in the bottom strip.

    You can play with the spacing as your eye sees fit. You may wish to break up the grid-like pattern by spacing either or both of the top and bottom rows a little bit wider.

  5. Attach Vertical Slats

    Attachthe 1x2s vertically to the horizontal slats. To prevent wobble, have an assistant hold an anvil or another heavy object behind the nailing surface as you hand nail.

    Alternatively, you may wish to use a cordless or compressed air nailer. In this case, back support would be beneficial but not necessary.

    Space these vertical slats equally down the line (about 12 inches apart, on-center).

  6. Add Finishing Touches

    Two more elements give your garden trellis a polished look: a decorative lath strip and post covers.

    First, nail the remaining lath strip to the very top of the vertical members. Locate this final lath strip so that its flat side is parallel to the ground.

    Second, nail the post covers to the tops of the 4x4s. Not only do these covers round off the posts and give them a smoother look, but they also prevent water from pooling on top of the posts.

How to Build a Freestanding Garden Trellis (2024)

FAQs

How to Build a Freestanding Garden Trellis? ›

Use Sturdy Anchors. The key to a stable freestanding trellis is using sturdy anchors. At H Potter, all our trellises, obelisks, and arbors come complete with ground spikes designed to securely anchor your trellis.

How do you stabilize a freestanding trellis? ›

Use Sturdy Anchors. The key to a stable freestanding trellis is using sturdy anchors. At H Potter, all our trellises, obelisks, and arbors come complete with ground spikes designed to securely anchor your trellis.

Is it cheaper to make your own trellis? ›

Building and making a garden trellis is not only cheaper than buying it ready-made, but also ensures you can get it the right shape, size, and thickness to match what you're growing.

Can a trellis be free standing? ›

Free standing trellises are often combined with planter boxes. With the weight of the plant soil, the trellis is then stable even under wind pressure. Especially annuals and long-flowering climbers, but also clematis are suitable for such trellises. To prevent rotting, plastic is often used instead of wood.

How do you anchor a trellis in the ground? ›

Use treated 4x4 post attached to the trellis and cement the post in the ground. I've always anchored them to a wall with U-shaped fastners and screws, if you want the trellis further out from the wall, I use wood block first and then apply the trellis over it.

How to mount a freestanding trellis? ›

FREESTANDING TRELLIS

Use Metpost Post Extenders and a piece of extra post to gain the required height. Fix the trellis to the extended post with Metpost Metclips or screws. Use a Grange Post Cap to the top of the post to add a decorative finish and protect the top of the post.

How to keep a trellis from falling over? ›

I use a trellis of those 6-foot metal stakes with a plate at the bottom. They're commonly sold at home centers and hardware stores. I pound those in 4 feet apart and far enough that the plates are in the ground. Then I use twisty-ties to secure a sheet of concrete-reinforcing wire to the stakes.

How to make an inexpensive trellis? ›

This cheap and easy garden trellis is made with two items. This Grip-Rite Ladder Mesh Block (currently $4.27 each – I paid $3.57 last year) at Home Depot and zip ties. That's it! You simply zip tie how ever many you'd like to use and arch them into your bed.

How high should a trellis be off the ground? ›

We recommend a trellis that's tall enough to accommodate growing vines, but not so tall that you'd have to stretch to pick. Our trellises measure 6 feet tall, but anywhere from 4 to 6 feet will work for growing most vining plants vertically. If your vines begin to grow out of hand, pinch off the top tip of the vine.

What is the difference between a lattice and a trellis? ›

Design and pattern: Lattices have a crisscross pattern, often forming diamonds or squares, whereas trellises usually have a more rigid, grid-like structure.

Do it yourself garden trellis? ›

For a simple vegetable trellis that will last for a few seasons, attach plastic netting, also known as poultry netting to two pound-in metal garden stakes. You're done in a few minutes!

How do you secure a wooden trellis? ›

Screw the trellis into the battens. The easiest way to do this is to install the top row of screws first, ideally getting someone to hold the trellis in place whilst you install the first screw. If you're working alone, it may help to prop the trellis up into the required position using a bag of compost.

What size wood to make a trellis? ›

You will need 1” x 2” lumber for all the pieces except the top and bottom rails, which require 2” x 2” lumber. Cut the lumber to the width and length you measured, using a circular saw.

How do you stop a trellis from falling over? ›

Garden Staples + Twine

This is one of our favorite methods. Stick a garden staple in a pocket above and tie some twine around the plants below to keep them from falling over. You don't need to tie the twine tight around the plants.

How do you hold a trellis up? ›

Screw the trellis into the battens. The easiest way to do this is to install the top row of screws first, ideally getting someone to hold the trellis in place whilst you install the first screw. If you're working alone, it may help to prop the trellis up into the required position using a bag of compost.

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