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A load bearing floorboard at over double the density of standard P5 chipboards to improve the airborne sound reductions transferring through a floor. Commonly installed on top of our P8 isolation strip a floating floor system can be created. Floating floor systems are some of the highest performing systems for reduction of sound and vibration through floor/ ceiling partitions and when using the STS TG4 boards in place of conventional structural boarding minimal height is added on to the floor build up. The TG4 boards can be installed on timber joist or metal structures with tongue and groove on four sides to give an airtight seal. 


As fibre cement is water resistant, this means the board can also be used in a wide range of applications including: wet rooms, kitchens, outdoor tiled areas, flat rooms, balconies, garden rooms and many more.


The high thermal conductivity of the cement fibre board allows the cement fibre to absorb and release heat much more efficiently than chipboard, therefore enhancing the performance of you underfloor heating.


Further reductions in both impact and airborne sound transmission can be gained by using a suitable MuteMat underlay on top of the STS TG4 boards. The performance can even be further increased with the addition of Tecsound, which will help to further reduce sound and vibration for areas requiring higher levels of performance.



Moisture and weather resistant

A1 fire rated

Great thermal mass (enhances under floor heating systems)

Direct to joists with T&G all sides

Tile directly on top

No squeaks 

100% recyclable 

Ideal for the upgrade of standard floorboards to improve airborne attenuation, for increased acoustic performance use with our MuteMat® 3 System

Compliant with both Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland) and Building Standards Technical Handbook 2017 for Scotland for impact transmission.

22 mm Cement Particle Board

  • Performance: 34dB.*

    Dimensions: 1200mm x 600mm x 22mm

    Weight: 24.8kg

    Mass: 34.4 kg/m²

    •For: Homes and commercial installations.

    • Compliance: Compliant with Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland).*

    • Installation: See our install section below.

    • Where: Structural flooring replacement where additional mass is needed for airborne sound reduction.

    A load-bearing, cement particle board for the improvement of airborne noise in flooring systems.

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