A retaining wall is a structure that holds or retains soil behind it. They can be installed to carve out functional outdoor spaces where once there were only precarious slopes. Our retaining walls are great for yards, gardens and more and can especially be used in hilly or uneven terrains. These stones come in many different shapes and thicknesses. Retaining walls also have a sculptural quality that adds definition to the landscape, and they can be made from various materials to evoke different styles.