Description
Build straight, durable retaining walls faster with the Cambridge Sigma 6 Plus Split Face wall block. Tackle seat walls, raised beds, terraces, and low retaining walls with a rugged split-face texture that hides scuffs and blends naturally into your landscape. Rely on the 6" course height and deep 12" profile to keep every course solid, level, and professional-looking.
Key Features
- Split-face texture: Get a natural quarried-stone look that elevates patios, borders, and garden walls.
- 6" course height: Stack consistent layers quickly for clean, level walls with fewer lifts.
- 12" depth: Improve stability for freestanding, terraced, and low retaining applications.
- Two-knob connection system: Lock courses together with filled-stone interlock in near-vertical or setback configurations.
- High-strength concrete: Stand up to weather, freeze-thaw cycles, and everyday wear.
- Seven color blends: Match your hardscape with Onyx Natural, Sahara Chestnut, Toffee Onyx, Toffee Onyx Lite, Limestone Quarry Blend, Sahara Chestnut Lite, or the warm, sandy Sandstone Blend.
Applications
Create tidy garden borders, seat walls around a patio, or low retaining walls to manage grade changes. Step up to engineered retaining walls, curvilinear walls, driveway and roadway support, and grand-scale architectural terracing where site conditions call for it. Frame outdoor kitchens and fire features with a consistent block size that lays out predictably, and finish with complementary caps for a cohesive look.
Specifications
- Material: High-strength concrete
- Dimensions: 6" H x 12" D x 16" L
- Face coverage: 0.67 sq ft per block; 32 sq ft per pallet (48 pieces)
- Weight: Approximately 46 lbs per block
- Setback options: Near vertical (1.7°) or 6° setback
- Finish: Split-face textured surface
- Colors: Onyx Natural, Sahara Chestnut, Toffee Onyx, Toffee Onyx Lite, Limestone Quarry Blend, Sahara Chestnut Lite, Sandstone Blend
- Sold by: Square foot
Prepare a compacted, level aggregate base and add drainage stone behind retaining walls to reduce pressure. Stagger joints, glue caps, and use geogrid and proper backfill where required by site conditions. Consult local codes or a professional for engineered or taller walls.


































