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STS Render Carrier Board – 12mm (2.4m x 1.2m)

£46.89 Excl. VAT

  • Cladding, panelling, decorative walling, roof lining, external boarding
  • Euroclass A1 fire-rated
  • Provides a high-strength and durable surface before rendering
  • Ideal for use with thin-coat silicone render

STS Render Carrier Board – 12mm (2.4m x 1.2m)

The STS Render Carrier Board is a highly effective construction board. It is suitable for use on metal and timber structures. This product is comprised of heavy-duty fibres which create a high-strength and impact-resistant surface for render application. This makes it a great carrier board for use on a range of projects; including residential, commercial, and industrial buildings.

This render board is suitable for use with cement-based render. However we highly recommend using it with a silicone-based render as a flexible, thin coat render will prevent cracking at the joints of the board.

It is especially suited to projects where quick construction, safety, cleanliness and hygiene are of high importance. Also suitable for use in interior areas of high humidity, like swimming pools, spas and wet rooms.


  • Fire: Euroclass A1
  • Impact resistant
  • Water-resistant
  • High density

Technical Specification

Board Dimensions
Length 2.4m
Width 1.2m
Thickness 12mm
Weight 45kg
Test Standard BS EN 12467:2016 + A1:2016
Density 1.28g cm3
Linear Variation (change in moisture) 0.16%
Bending Strength (dry) 12.46 MPa
Bending Strength (saturated in warm water) 12.91 MPa
Water Impermeability (unprimed) No water formation after 24 hours
Reaction to Fire EuroClass A1 Non-Combustible (A1fl)
Test Standard EN ISO 1182 & EN ISO 1716
Fire Insulation BS 476 part 22 (118 min burn time for timber frame party wall)
Mechanical Characteristics – Bending Strength (MOR) Class 2
Durability: Freeze-Thaw Complied
Durability: Heat-Rain Passed
Durability: Warm Water Complied
Durability: Soak-Dry Complied
Test Standard EN ISO 1182 & EN ISO 1716
Pull through testing Mean result: 1650 Newtons
Pull out testing Mean result: 840 Newtons
Module of rupture (Dried Conditioning) 13:13 MPa
Thermal Conductivity ≤0.25W/ (m.k)
Compressive Strength 11.2Mpa (Air Condition), 13.5Mpa (Dry Condition)

Fixing Guide


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