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Apply for a Trade AccountSolid Dense 100 mm 7.3 N Concrete Blocks deliver the structural performance for demanding projects. Being fully solid, they are heavier and more robust than cellular, aircrete, or medium dense blocks, making them ideal for walls where high load bearing capacity are required. Used in cavity or solid wall constructions, beam‑and‑block flooring infills, boundary walls, and any project that requires high compressive strength
Produced from cement, sand, and crushed stone, these blocks offer a dense profile that provides excellent sound insulation and fire resistance. Their rough textured face makes it easier to plaster or render.
Key Features & Benefits:
Technical Specifications:
| Weight | 20 kg |
|---|---|
| Compressive Strength | 7.3N |
| Height | 215mm |
| Length | |
| Depth | 100mm |
Above the DPC (external leaf above ground & internal walls):
A Class M4 masonry mortar is recommended. This provides around 4 N/mm² compressive strength—sufficient for most above-DPC blockwork without over-rigid joints
Below the DPC
A Class M6 mortar is recommended for aggregate blocks in soils at risk of saturation or freeze–thaw exposure.
No, once laid, the block face provides a suitable mechanical key for plaster, render or direct adhesion of plasterboard without additional boarding.
They show moderate suction, offering a reliable key for renders without excessive moisture draw-off that can cause cracking.
Standard nylon or fibre wall plugs used with light-duty screws will suffice for most shelving. For heavier loads, opt for mechanical or chemical anchors like Fischer’s SX/FU series, for example.
For fast, straight cuts use a manual block splitter; for precision work, a circular saw with a diamond-tipped blade; or for occasional or rough cuts, score and split with a hammer and bolster.
