Possibilities for Concrete Retaining Walls in Your Garden

Concrete is an excellent material for a retaining wall, as it's strong, durable, and doesn't rot or attract termites. Additionally, it can be treated to create various looks. Concrete also offers the possibility of different kinds of walls, as explained below.

Dry-Stacked Concrete Blocks

One way your contractor can build a concrete retaining wall is by using dry-stacked concrete blocks. These are shaped to be stacked and locked in place without needing mortar. This system is useful if you want a relatively low wall or one for decorative purposes, such as around a patio.

A stable base is essential to the integrity of these structures. The contractors may lay compacted gravel and sand, which will help prevent the wall from settling unevenly. Alternatively, they could pour a narrow band of cement following the wall contour. Once the concrete is cured, the blocks can be stacked on top.

These blocks come in varied designs to suit different gardens. For example, you can choose from systems that mimic stone, slate, or wood. An advantage is that you can see the actual finish of the wall before it's built.

Besser Blocks

Concrete retaining walls can also be constructed with another type of block, called besser blocks. These are designed to be filled with steel bars and cement, so their construction is relatively complex. The blocks have a hollow core, so the metal reinforcing bars can thread through.

This method allows a retaining wall contractor to build various structures, from low ornamental fences to vast barriers holding large soil banks on a steep hill. To ensure its integrity, a structural engineer may be required, depending on the scale of the project.

While besser blocks aren't decorative in their raw state, the contractors can cover the built wall with render and give it textures and colours. This customization lets you match the structure to other features, such as your house and the surrounding paving.

Concrete Sleepers

A retaining wall can also be built with concrete sleepers. The sleepers have a long rectangular shape, like the timber sleepers on a train track, and they are set at a horizontal angle to create the wall. The sleepers will attach to steel posts that have been cemented into the ground. As you can imagine, a wall made of steel posts and large pieces of concrete is solid and can be used for massive projects.

Like stacked concrete blocks, the sleepers come in varied decorative finishes. Some look like specific natural hardwood species, such as spotted gum and ironbark. The sleepers are also available in designs that look like sandstone and other materials.

Reach out to a retaining wall contractor in your area to learn more.