A 12mm resilient acoustic layer laminated to a 22mm t&g cement particle, premium quality overlay board. The slim profile and high acoustic performance of Acoustic Deck 34 premium overlay board makes it ideal for timber floor refurbishment projects. Convenient: Easy to install and always available for fast delivery nationwide. Premium Quality Overlay Board: Acoustic Deck 34 is ideal for overlaying directly to an existing sub-floor. Strong and rigid: Suitable for both 400mm and 600mm joist centres and ceramic tiling. Non load bearing partitions can be built off the floor. Properties Length: †1.2m. Width: †600mm. Thickness: †34mm. Board coverage: †0.72m2. Composition: †22mm T&G P5 cement based board with a pre-bonded 12mm foam resilient layer. Edging: †tongue & groove. Weight: †24kg. Acoustic Testing & Compliance JCW Acoustic Deck 34 has been tested and certified to provide the necessary acoustic insulation required for compliance with part ëEí of the Building Regulations for both impact and airborne noise.