Can I plant trees next to a retaining wall?
Perennials and shrubs are usually the best choices to plant close to retaining walls. If you’re set on adding a tree for a bigger burst of green, choose a small tree, like one of the ones below. And plant those near, not on top of, the wall. Retaining walls look as if they have to hold back great masses of earth, but they only have to hold back a small wedge. Rather than filling that wedge with moisture-loving soil that may threaten your wall, fill it with sandy, gravelly materials that compact easily and allow water to drain down and away from your wall.Poured concrete is the cheapest type of retaining wall, in terms of materials. Pressure-treated pine is next, and wood retaining walls are becoming more popular now. If you prefer stone, granite is generally the least expensive option.
What is the easiest retaining wall to DIY?
The most simple method of retaining is using a masonry link wall block such as the Adbri Versawall Block. This type of block requires no specific engineering, concrete, mortar or glue. That being said, if you’re planning a large wall (long or high), take your time and DON’T attempt it in just one weekend! A footing is critical for a retaining wall’s stability, even for a 2-foot structure. The footing ensures the wall evenly distributes weight and resists forces from soil pressure, water, and potential shifting.Absolutely. Even a 4-foot retaining wall needs proper drainage to prevent structural failure. Water is heavy—about 62 pounds per cubic foot—and when trapped behind a wall, it exerts hydrostatic pressure.The base of a retaining wall should be set below ground level and made from compacted soil and a layer of at least 150mm of compacted sand and gravel. This will ensure that the wall remains flat, meaning more contact between the materials used in its construction, meaning more friction and ultimately more strength.Anytime there needs to be a wall constructed that is over 4 ft. Large wall projects will need to involve an engineer to make sure the proper measures are being taken to meet codes.