Cantilever walls are structural elements that extend horizontally and are supported at one end. They are commonly used in construction to retain soil or other materials, providing stability to slopes and preventing erosion. The design allows them to withstand lateral forces, making them effective in various applications, such as basements and retaining walls. These walls are typically made from materials like concrete or masonry and are anchored to a foundation. Their shape and weight help resist the pressure exerted by the retained material, ensuring they remain upright and functional. Proper engineering is essential to ensure their effectiveness and safety.