Another perk of these walls is that they are less reliant on geo grid. Typically, a wall uses geo grid, which is a rubber and plastic material that is buried behind the wall, to help support the wall and tie it into the supported hillside. On average, geo grid will extend 80% of the wall’s height into the hillside. This presents an issue when working in a smaller space. However, precast concrete blocks are less reliant on geo grid, which allows them to be built in tighter areas, and is one of the many reasons to choose the larger block.

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