100mm Solid Dense Concrete Block 7N 215mm x 440mm

The 100mm Solid Dense Concrete Block is a foundational building material designed for demanding structural applications in both residential and commercial construction. Measuring standard 215mm x 440mm with a 100mm thickness, these blocks are manufactured from high-quality aggregates and cement to achieve a dependable 7N/mm² compressive strength.

Built to withstand heavy vertical and lateral loads, dense aggregate blocks are highly resilient and provide an excellent background for heavy-duty fixings, structural plastering, or external rendering systems.

Key Features & Benefits

• 7N Structural Strength: Certified load-bearing capacity makes these blocks ideal for multi-story buildings, structural partitions, and foundations.

• Excellent Acoustic Performance: The high density of the aggregate naturally dampens sound transmission, making it highly effective for separating walls and acoustic partitioning between rooms.

• High Thermal Mass: Absorbs, stores, and slowly releases heat, helping to regulate internal building temperatures and improve overall energy efficiency.

• Superior Fire & Moisture Resistance: Achieves the highest Class A1 Fire Rating (non-combustible) and offers excellent durability when used in below-DPC (Damp Proof Course) installations or retaining walls.

• Ideal Key for Render & Plaster: The textured surface profile ensures a strong mechanical bond for scratch coats, structural renders, and traditional sand-and-cement mixes.

Typical Applications

• Load-Bearing Inner & Outer Leaves: Suitable for the inner leaf of cavity walls or external single-skin walls when finished with appropriate cladding or render.

• Foundations & Below-DPC Work: Highly stable for use in trench foundations, footings, and foundations below ground level due to high moisture tolerance.

• Separating & Partition Walls: Perfect for high-strength internal partitions where acoustic privacy and structural stability are required.

Specifications

• Dimensions: 440mm (Length) x 215mm (Height) x 100mm (Thickness)

• Compressive Strength: 7N/mm²

• Block Type: Solid Dense Aggregate Concrete

• Configuration: Group 1 (Solid)

• Fire Rating: Class A1 (Non-Combustible)

• Weight: Approx. 18.5kg – 20kg per block (varies slightly by manufacturer)