Thermalite 100mm Hi-Strength 7 Block 7.3N


  • Inherent thermal insulation properties
  • 80 per cent recycled content
  • Can be used in internal and external walls, foundations and beam and block floors
  • Make U-value targets easier to achieve
  • Improves linear thermal bridging performance at junctions
  • BES 6001 Responsible Sourcing certification
£25.79 Price per m2 - sold by the block
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Product code


Hi-Strength 7 has been specifically designed for applications such as flats of three storeys and above, offices, supermarkets and retail parks, where loading conditions require a 7.3N/mm2 building block.

• Available in large format
• For use with thin layer mortar

Strength: 7.3N/mm2
Thermal conductivity: 0.18W/m.K
Density: 730Kg/m3

More Information
More Information
Price On ApplicationNo
Gross Weight (Kg)7.1 kg
Brick / Block ColourGrey
Height (mm)215 mm
Length (mm)440 mm
Width (mm)100 mm
Brick and block estimator

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This Estimator is to be used purely as an approximate guide.

(Calculation uses the standard size of 225mm x 450mm for blocks and a size of 225mm x 75mm for bricks)

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Your area is

7.5 sq metres

You require

450 Bricks
412.5 KG of sand
5 KG of cement