Toplite '7'
Toplite '7' is suitable for more demanding loadbearing applications whilst retaining the characteristic low unit weight of aircrete. It may also be used in separating walls including those conforming to Robust Detail E-WM-6.
Technical properties
- Manufactured to BS EN 771-4
- Mean compressive strength: 7.3N/mm²
- Dry density: 730kg/m³
- Thermal conductivity (at 3% moisture content): 0.19W/mK
- Reaction to fire: Class A1
- Typical airtightness: 100mm blocks - all grades, no finish 0.12m³/(h.m²)
- Block size: 440mm long x 100-215mm (various widths) x 215mm high
Sizes & weights for 7 (7.3N/mm²)
| Block width (mm) | 100 | 140 | 150 | 190 | 200 | 215 | |
| Unit weight (kg) | 7.1 | 10.0 | 10.7 | 13.5 | 14.2 | 15.3 |
Unit weights are approximate and based on 3% moisture content
Tolerance to BS EN 771-4: Length +3/-5mm, Height +3/-5mm, Thickness +2/-2mm
Product Availability
This product is available on a national basis.
Find out more
Download the
Topblock Toplite Aircrete Blocks Brochure (pdf, 903kb)
See all Toplite applications


