Build a strong, clean-looking retaining wall fast with Semma Walls, a double-sided split-face concrete system that locks together for vertical or sloped builds. Tackle raised patios, freestanding seating walls, and garden borders with blocks engineered to stay aligned and look finished on both sides. Speed up DIY installs with tapered sides for smooth curves and a mechanical interlock that removes guesswork.
Key Features
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Double-sided split face: Finish both sides for seating walls and parapets.
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Independent interlock: Keep courses tight for vertical or battered designs.
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Tapered sides: Form curves and corners with less cutting and waste.
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4-cored units: Fill with gravel to boost shear strength and stability.
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Dry Cast concrete: Count on high strength and weather resistance season after season.
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Contractor-friendly handling: Move and place cored units more easily on DIY projects.
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Matching corner & pillar kit: Finish columns and crisp 90° corners that line up clean.
Applications
Shape backyard terraces, retain soil for raised patios, and build freestanding parapets that match your hardscape. Create garden enclosures and modern landscape accents that look cohesive from every angle. Plan straight runs or flowing curves without complicated cuts.
Specifications
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Material: Dry Cast concrete
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Unit dimensions: 5 7/8 x 11 x 16 in (150 x 279 x 406 mm)
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Corner & pillar kit: 5 7/8 x 1 1/2 x 16 in (150 x 38 x 406 mm)
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Finish: Split face with rugged surface texture
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Build styles: Vertical or battered; double-sided appearance
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Colors: Shale Grey, Champlain Grey, Chestnut Brown, Sandlewood
Prepare a solid base, compact well, and fill block cores with clean gravel to add strength and promote drainage. Rinse occasionally to keep the surface looking fresh. Backed by a limited lifetime warranty for lasting confidence.
Build faster, straighter, and stronger with Semma Walls, a double-sided retaining wall block engineered for pro crews. Tackle vertical or battered runs with a built-in mechanical interlock that keeps courses tight and stable. Cut labor time with cored units that handle easily, then lock the system by gravel-filling the cores for added mass and shear strength. Deliver a clean finish on both faces for parapets, seat walls, and raised patios without compromise.
Key Features
- Dual-face split texture: Finish both sides for parapets and freestanding walls without extra facing.
- Mechanical interlock: Secure courses for vertical or setback designs and reliable alignment.
- Tapered sides: Simplify curves, ease layout, and keep joints tight on radius work.
- 4-core design: Fill with gravel to boost shear strength and distribute joint loads.
- Dry Cast concrete: Rely on high compressive strength and weather resistance for long service life.
- Contractor-focused handling: Use cored units to speed placement and reduce strain on the crew.
- Corner & pillar kit: Build clean corners and columns that match the wall texture and color.
Applications
Put Semma Walls to work on structural retaining walls, raised patios with integrated parapets, and garden or site walls that need both strength and finish. Manage grade changes confidently while delivering a modern, stone-like look your clients expect.
Specifications
- Material: Dry Cast concrete
- Wall Unit Dimensions: 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)
- Finish/Texture: Split-face with rugged surface detail
- Faces: Double-sided
- Core: Four cored voids for gravel infill
- Colors: Shale Grey, Champlain Grey, Chestnut Brown, Sandlewood
Start with a level, well-compacted base, stagger your joints, and fill cores with clean gravel as specified to increase stability. Count on long-term performance and get peace of mind with a limited lifetime warranty.
