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Coursing units are produced from the same material and suitable for the same applications as conventional sized blocks, allowing consistency within the building fabric. The units are also suitable for internal and external applications. The product is available in three strength categories and a range of thicknesses.


  • Protect construction against thermal bridging.
  • Infill above doors and windows.
  • Coursing at floor and ceiling level.
  • Making up between joists.

Related literature

The following content references this product:

Standard product features

Face size:

215 x 65 mm.

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

[High Strength Grade Coursing units]
Compressive strength: 7.3 N/mm².
[Super Strength Grade Coursing units]
Compressive strength: 8.7 N/mm².
[Standard Grade Coursing units]
Compressive strength: 3.6 N/mm².


[100 mm]
[140 mm]

Manufacturer details

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