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Celcon Foundation Blocks are principally used below damp proof course (DPC) level for the support of cavity or solid walls; framed construction or suspended floors. The product is available in two strength categories and a range of thicknesses. Foundation blocks may also be used above ground for solid wall construction.


Celcon Foundation Blocks can be laid below DPC level without mortared perpends. Lay blocks in horizontal mortar bed joints; butting together to prevent the passage of vermin.

Related literature

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Standard product features

Thermal conductivity:

  • Standard Grade Foundation Block: 0.24 W/m·K..
  • High Strength Foundation Block: 0.30 W/m·K..


  • Standard Grade Foundation Block: 600 kg/m³.
  • High Strength Foundation Block: 730 kg/m³.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-80-50/304 Autoclaved aerated concrete (AAC) blocks

Product specification

An important note about specifying



H+H UK Ltd


+44 (0)1732 886444

Product reference

[Celcon Standard Grade Foundation Blocks]
Compressive strength: 3.6 N/mm².
[Celcon High Strength Grade Foundation Blocks]
Compressive strength: 7.3 N/mm².

Face size

[325 x 215 mm]
[440 x 215 mm]


[275 mm]
[300 mm]
[355 mm]

Manufacturer details

Celcon House,
Borough Green,
Kent, TN15 9HZ
Tel +44 (0)1732 886444
Fax +44 (0)1732 886810
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