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1Mark where your lanscape timbers will go.
2Create trenches for your timbers.
3Even out the bottom of the trenches.
4Add landscape fabric (optional).
5Cut your timber to fit the trenches.
6Place your timber into the trenches.
7Build your second layer of timber (optional).
8Drill holes into your timber.
9Secure the timber to the ground.
10Clean up the area around the edging.
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Co-authored byNihal ShettyReviewed byBen Barkan
Last Updated: May 23, 2023Fact Checked
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Want to liven up your garden with attractive and hardy landscape timber edging, but not sure where to begin? We’re here to help. Landscape timber is a great choice for a garden—its natural look is more attractive than steel, and it’s much more durable than plastic. Even better, it’s relatively simple to install. We’ll walk you through creating edging on a flat surface or on a slope: read on for our comprehensive guide on how to install landscape timbers.
1
Mark where your lanscape timbers will go.
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Set up mason lines to mark the locations of your landscape timbers. For a simple garden edge with a rectangular design, set up stakes at all 4 corners of your garden, and pull a mason line taut between each stake. If your planned garden is large enough that it’s difficult to keep a single line taut between two stakes, add an additional stake midway along your garden’s length or width.[1]
- If you don’t have a mason line, any other kind of string can work just as well.
- For ease of access, try not to have your timbers set at a width of more than 4 feet (1.2) meters from each other if you’re planning on creating a garden.[2]
- Although the length of the rectangle can be as long as you’d like, if the rectangle is too long, it’ll be difficult to reach your plants without stepping in your garden.[3]
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2
Create trenches for your timbers.
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Dig trenches 3 inches (7.5 cm) deep along the mason lines. For tough turf, use a sharp spade.[4] These trenches will need to be wide enough to accommodate the size of your timber—usually 4 to 6 inches (10 to 15 cm) across. Remove as much organic matter, like roots or other plant residue, as you can.[5]
- If you’re working on a shallow slope (under 10 degrees), dig approximately 8 inches (20 cm) into the ground from the higher end of the slope. For steeper slopes, dig 12 inches (30.5 cm) into the ground.[6]
3
Even out the bottom of the trenches.
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Tamp down the ground to create a level surface. Run a level along the bottom of your trenches, removing or adding dirt as needed to create a level surface. With your hands or the back of your spade, tamp down the soil at the bottom of the trenches.[7]
- To add longevity to your timbers, add a layer of sand or gravel about an inch (2.5 cm) thick to the bottom of your trenches.[8]
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4
Add landscape fabric (optional).
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Install landscape fabric if you want to keep out weeds. To do this, roll landscape fabric over the trenches, then drive it into the ground with small stakes and a hammer. Trim any extra fabric that hangs out over the edges.[9]
- This step is optional—if you aren’t worried about weeds in or around your trenches, it’s okay to skip this step.
5
Cut your timber to fit the trenches.
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You may need shorter pieces of timber to fill out your trenches. Measure the length of each trench, and use this information to decide how many pieces of timber you’ll need. If you need a shorter piece of timber at the ends of each trench in order to match its length, mark the length of timber you need on a longer piece, then cut it. A circular saw works great for this, but a hand saw can also do the trick.[10]
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6
Place your timber into the trenches.
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Line up the pieces of timber so that they’re a snug fit in the trenches. Use a level after placing each log so that you can be sure they’re level against the ground. If a piece isn’t flat against the ground of the trench, add or remove some soil from underneath it.[11]
- To make sure your timber edging lasts for a long time, use rot-resistant wood. Cypress, cedar, redwood, or pressure-treated wood can last beyond 7 years, while less durable options might need to be replaced earlier.[12]
7
Build your second layer of timber (optional).
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Place a second layer of timber on top of your first layer. Be sure that the layers of timber line up smoothly. If you’re having trouble making sure the second layer is level, place wood shims between the levels.[13]
- This step is only necessary if you want a taller garden edging. If you’re satisfied with the height of a single layer of timber, there’s no need to install a second.
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8
Drill holes into your timber.
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Drill 2 holes on each log, 2 inches (5 cm) from each end. Pre-drill your wood with a power drill. Use a drill bit that is slightly smaller than the size of the rebar stakes that you’ll eventually be placing into it. By doing so, you can prevent your wood from becoming damaged.[14]
- If you have 2 or more layers of timber, drill through all of them at the same locations.
9
Secure the timber to the ground.
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Driving rebar stakes into the holes you drilled will secure your timber. Place the end of a rebar stake into the hole that you pre-drilled. Then, drive it through the wood and into the ground with a hammer. Use a hammer to push the rebar stakes through the timber, ideally using rods or rebar stakes long enough to be driven 2 feet (0.6 meters) into the ground.[15]
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10
Clean up the area around the edging.
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Warnings
Even pressure-treated wood has a much shorter lifespan than other materials because of its contact with soil. If you want a more permanent solution, consider using stone or metal. Pressure-treated wood in contact with wet soil can last 5 to 15+ years (or less) depending on the site conditions and wood quality.
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About This Article
Reviewed by:
Ben Barkan
Garden & Landscape Designer
This article was reviewed by Ben Barkan and by wikiHow staff writer, Nihal Shetty. Ben Barkan is a Garden and Landscape Designer and the Owner and Founder of HomeHarvest LLC, an edible landscapes and construction business based in Boston, Massachusetts. Ben has over 12 years of experience working with organic gardening and specializes in designing and building beautiful landscapes with custom construction and creative plant integration. He is a Certified Permaculture Designer, is licensed Construction Supervisor in Massachusetts, and is a Licensed Home Improvement Contractor. He holds an associates degree in Sustainable Agriculture from the University of Massachusetts Amherst. This article has been viewed 31,401 times.
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Co-authors: 4
Updated: May 23, 2023
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Categories: Garden Projects
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