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Standard blocks are available in a range of thicknesses, which can be used above and below damp proof course (DPC) level.


  • Foundations.
  • Internal and external leaf of cavity walls.
  • Solid walls.
  • Separating walls.
  • Partitions.
  • Multi-storey buildings.
  • Beam and block floors; a separate BBA Certificate covers the product's use as floor infill.
  • Flanking walls.

Related literature

The following content references this product:

Standard product features

Compressive strength:

3.6 N/mm².

Thermal conductivity:

0.15 W/m·K.


600 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 Blocks]
Face size: 440 x 215 mm.
[Celcon Standard Grade Plus Blocks]
Face size: 630 x 215 mm.
[Celcon Standard Grade Jumbo Blocks]
Face size: 630 x 250 mm.


[75 mm]
For Celcon Solar and Standard Grade Blocks only.
[100 mm]
[140 mm]
[150 mm]
[215 mm]

Manufacturer details

Celcon House,
Borough Green,
Kent, TN15 9HZ
Tel +44 (0)1732 886444
Fax +44 (0)1732 886810
NBS Plus
NBS National BIM Library