Product Benefits

All Celcon Blocks are BBA Certified, are fire resistant (100mm walls, up to 4 hours, 2 hours if load bearing, dependent upon the Grade) and have been classified 0 surface spread of flame and non-combustible to Class A1(the highest class). 

Celcon Blocks are manufactured in 440mm x 215mm and are available in thicknesses from 75mm to 355mm Foundation Blocks and can be used in the applications listed.

Standard Grade Block sample

Product applications

  • Inner leaf of cavity walls
  • External leaf of cavity walls
  • Solid walls
  • Separating walls
  • Partitions
  • Flanking walls
  • Multi storey buildings
  • Foundations/Below ground level (DPC)
  • Beam and block floors

Product Specifications

Celcon Blocks Solar Grade Standard Grade High Strength Grade Super Strength Grade
Compressive Strength 2.9N/mm2 3.6N/mm2 7.3N/mm2 8.7N/mm2
Thermal Conductivity 0.11W/mK 0.15W/mK 0.18W/mK 0.18W/mK
Density 460kg/m3 600kg/m3 730kg/m3 730kg/m3


Code: U
Code: S
Code: N
High Strength
Code: H
Super Strength

Product related case studies