Durox Supabloc
Durox Supabloc blocks are mainly used for the inner leaf of cavity walls, for solid clad or rendered external walls, and for internal partition walls. You can also use them below ground for cavity walls or internal walls in sulfate conditions not exceeding DS-2.
Technical properties
- Manufactured to BS EN 771-4
- Average compressive strength: 3.6N/mm²
- Dry density: 460kg/m³
- Thermal conductivity (at 3% moisture content): 0.11W/mK
- Reaction to fire: Class A1
- Typical airtightness: 0.12m³/(h.m²) at 50 PA
- Block size: 620mm long x 50*-215mm (various widths) x 215mm high. 50mm Supabloc has a face size of 310mm long x 215mm high.
Sizes & weights for Supabloc (3.6N/mm²)
| Block width (mm) | 50+ | 70 | 100 | 115 | 125 | 140 | 150 | 190 | 200 | 215 |
| Unit weights (kg) | 1.6 | 4.4 | 6.3 | 7.3 | 7.9 | 8.8 | 9.5 | 12.0 | 12.6 | 13.6 |
Unit weights are approximate and based on 3% moisture content
+working size = 310 x215mm
Greater thicknesses are available in the Foundation range.
Find out more
Download the Topblock Durox Aircrete Blocks Brochure (pdf, 1029kb)
See all Durox applications


