Semma Wall

Semma Wall is an innovative double-sided retaining wall block system engineered for both vertical and battered installations. Featuring tapered sides and an independent mechanical interlock, it delivers exceptional shear strength ideal for raised patios, structural retaining walls, and free-standing parapets. The contractor-friendly cored units incorporate a 4-core design that, when gravel-filled, enhances interlock, strength, and joint stability for demanding applications. The integrated Coin feature adds versatility for complex designs. With its refined split finish available in four complementary colors, Semma combines modern aesthetics with proven structural performance. Complementary pillar kits provide complete design flexibility and lasting durability for any landscape project. Dimensions: Wall unit: 5 7/8 x 11 x 16 in (150 x 279 x 406 mm); corner & pillar kit: 5 7/8 x 1 1/2 x 16 in (150 x 38 x 406 mm)