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JCW Sound Insulation Board Premium 21 Acoustic Insulation Board - 1.2m x 600mm x 21mm

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£25.60 Incl. VAT
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Acoustic soundboard Premium is an MDF based premium acoustic overlay board for timber floors.
The moisture resistant 9mm TG4 MDF board with a pre-bonded 12mm high performance resilient layer means the acoustic soundboard offers excellent airborne and impact sound reduction.

Acoustic soundboard premium 21 shallow overlay dramatically reduces sound transmission through timber floors.

This is one of the quickest and most effective acoustic solutions on the market. At just 21mm thickness this soundboard minimises construction height whilst still complying with statutory regulations.


Length: 1.2m.
Width: 600mm.
Thickness: 21mm.
Sheet size: 0.72m2.
Weight: 7kg per sheet.


  • Ideal acoustic overlay board for existing timber floors
  • Exceptional impact sound performance
  • Will also effectively improve airborne sound insulation
  • Complies with Part E of the Building Regulations
  • The MDF based top surface is immediately ready for final floor installation
  • Must be used in conjunction with JCW Perimeter Edging Strip to ensure Building Regulations compliance

This acoustic board overlay system is known as robust details FFT5 Resilient overlay shallow platform floor system. Overlaying the floor with an isolating layer and a new hard wearing surface is the most convenient way of dramatically improving the airborne and impact sound performance of an existing floor.

We have a range of acoustic flooring and acoustic decking systems which range from 19mm to 38mm to suit all budgets and floor soundproofing scenarios

Acoustic test data

BRE LAB TEST DATA: TEST NO: L216-007, L216-008
Airborne: Rw - 61 dB Rw + Ctr - 52dB.
Impact: Ln, w 51 dB.


Length 1200mm Thickness 21mm Width 600mm


Material Acoustic Resilient Layer

Questions & Answers


Can this product be stuck down the the subfloor


Yes, this can be used for this application.

Have a question about this product?


3.5 / 5 2 reviews
Mr. David Hollingworth
20th September 2021
Does what it says on the tin
Shaun Norton
11th September 2019
Very disappointed with the tongue and groove system as very difficult to knock together without damaging either the groove or tongue luckily I over ordered just in case we had any problems. If they made that a little easier and not as soft would be a fantastic system as the final result works great.
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JCW Sound Insulation Board Premium 21 Acoustic Insulation Board - 1.2m x 600mm x 21mm

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