Retaining walls are essential structures used to resist the lateral pressure of soil, water, or other materials. These walls help prevent erosion, stabilize sloped areas, and create terraces for landscaping or construction. Retaining walls come in various types, including gravity, cantilever, counterfort, and anchored, each suitable for different purposes and soil conditions. Depending on your project's needs, retaining walls can be made from concrete, stone, brick, timber, or other materials.