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How do you fasten landscape timbers to the ground?

By Sarah Oconnell

Pin the Timbers With Rebar (optional)

Secure the timber border to the ground with rebar, if desired. Drill 3/8-inch holes through the centers of the timbers, spacing the holes about 4 feet apart. Pin the timbers to the soil with 12-inch lengths of #3 (3/8-inch-diameter) rebar driven with a hand sledge.

What can I use instead of landscape timbers?

Bricks make another good alternative to landscaping timbers. They can be a little more expensive that cement pavers. But, like pavers, they last forever and come in a range of styles, shapes, and colors. This makes them perfect for use in a number of applications.

How long will untreated landscape timbers last?

Even so, you can reasonably expect to get anywhere from 10-20 years out of a timber wall. We did a job a couple of years ago where we removed a timber retaining wall so we could install a new Techo-Bloc wall.

Do I need to secure landscape timbers to ground?

To ensure your raised beds or terraces do not move, the timbers will need to be properly secured into place. Before adding soil to your raised beds, it is recommended to lay down a layer of landscaping fabric to inhibit the growth of weeds in your new garden.

How do you lay landscape timbers on uneven ground?

Lay the second row of timbers, staggering the seams above the timbers below. Pitch the second row, and every subsequent row, into the slope by 1/4 inch from the row below it. Drive galvanized spikes between the first and second rows to secure the wall. Predrill the wood to make the work easier.

How do you put rebar on landscape timbers?

To install rebar, drill a hole through each timber, stack the timbers, if necessary, then drive the rebar through the hole and into the ground using a sledgehammer. To prevent rusting, choose epoxy-coated rebar over uncoated material.

What is the difference between #1 and #2 railroad ties?

1, or premium grade railroad ties are relay grade railroad ties that aren’t good enough to be relay grade. They have 3 or 4 good sides and may have some cracking, slight warping, or minor splitting on the ends. No. 2 (good) grade railroad ties look good on 2 or 3 sides and may have some warping.

Is it safe to use railroad ties for landscaping?

Using railroad ties for garden beds can pose a threat to your soil, pets and children, as well as the food you grow. The wood is preserved by soaking it in creosote, which is composed of over 300 chemicals, many of them toxic and persistent in soil. Exposure to creosote has been shown to cause cancer.

How do you keep landscape timbers from rotting?

Pressure-Treated Landscape Timber

The active ingredients may vary, but the solution commonly includes alkaline copper quaternary, copper azole or micronized copper azole. These ingredients are key in protecting the wood from termites, fungus and moisture.

How long will a pressure treated timber retaining wall last?

A timber retaining wall can last a little over a decade, if treated properly. If not maintained, the lifespan of a timber wall is around 3 to 5 years. To keep its fresh look, timber requires serious maintenance. The material will hold up for so many years only if its pressure-treated with chemicals.

How long will railroad ties last in the ground?

But, in general, you can figure 10–15 years of life on a very busy line and 20–25 years of life on your average line. Ties are generally only replaced as-needed. Periodically, a crew will walk the ties and mark those that need replaced. So, over time, all the ties under a piece of railroad will be of various ages.

What is the best wood for a retaining wall?

Because a retaining wall is going to be in contact with the ground, make sure you use lumber that’s rated for ground contact. Your best choice is a pressure-treated wood that has a rating of . 40 or higher. Avoid railroad ties—they’re heavy and soaked with creosote, which is messy and can harm plants.