The Firma Wall is a pin-less segmental retaining wall unit with a natural straight split-face texture. Firma Wall's patented tongue and grove locking system with a built-in ¾” setback is solid and will conform to every landscape plan, including large engineered wall applications, residential or commercial. Firma is manufactured in accordance with ASTM C 1372.
Each bundle comes with 5 pieces to split for corners. 6" Firma corner units are available on a separate pallet.
- Applications: Retaining Walls, Garden Walls, Steps