The material used to build the retaining wall, the wall’s height height, the amount of soil it retains, soil conditions, weather, water and where the wall is built all effect how the footing is designed. While others are very small and simple like a raised garden bed.Īll retaining walls need some type of footing. Some are built huge, capable of hold back entire hills from eroding. The purpose of a retaining wall is to hold back soil. In this article we’ll discuss retaining walls, their footings and how to build them safe and strong. And they need drainage because water creates pressure under and behind the wall which can also collapse the wall. A retaining wall needs a footing because if the ground below it shifts, the wall will shirt too and possibly collapse. The key to building a strong and durable retaining wall is a stable footing and proper drainage. These materials can flex a little because they’re not held together by mortar or concrete. Retaining walls built out of loose rocks, wood, stacked stones or brick without mortar, large stones or paver blocks require a compacted stone footing.So they need a super strong and stable base to hold them together. Solid masonry walls are stiff and unable to flex because they’ll crack. Large masonry retaining walls built out of rigid materials like concrete, cinder blocks, cement or brick need a concrete footing.Every retaining wall needs a footing, but what type depends on the design, material, height and weight of the wall. They can be built out of wood or masonry materials like brick, paver blocks, stone or concrete. Retaining walls can also be paired with fences to make steep drops safer. They can be built on the side of a highway to hold back rock falls or in a garden to form a flower bed or terraced walkway. The purpose of building a retaining wall is to create flat and level areas of Earth. If your yard slopes down or has a steep incline then a retaining wall can make the ground level. Retaining walls are built to hold back, a.k.a retain, dirt that could collapse or erode without the wall.
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March 2023
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