HomeAll ProductsRetainer WallRetainer WallAll retainer walls are poured at 5000 psi and reinforced with rebar. Edges are grooved to interlock with other retainer walls. Available in 4 ft, 6 ft, or 8 ft.Retainer Walls Product Info4 ft:4' x 8' with a 2' leg weighs ~4,200 lbs6 ft:6' x 8' with a 3' leg weighs ~5,675 lbs8 ft:8' x 8' with a 4' leg weighs ~7,100 lbs