Retaining wall cap stones (also called ) are the flat, finishing blocks placed on the very top of a retaining wall. While they provide a polished, professional look, their most critical job is protecting the wall’s structural integrity. 1. Why You Need Cap Stones
By sealing the top, they prevent dirt, debris, and water from seeping into the core of the wall, which can cause blocks to shift or deteriorate over time. retaining wall cap stone
Place the stones on top first to check the fit and plan your cuts. Many pros recommend an overhang of 1–2 inches to ensure water drips away from the wall face. Retaining wall cap stones (also called ) are
Use a high-quality exterior concrete construction adhesive rather than standard mortar to allow for slight thermal expansion. Why You Need Cap Stones By sealing the
Caps create a flat surface suitable for seating, lighting, or placing decorative planters. 2. Common Materials Characteristics Natural Stone High-end projects