Menu
Menu
Your Cart

21mm JCW Acoustic Soundboard Premium 21 - MDF based Acoustic Overlay Board

21mm JCW Acoustic Soundboard Premium 21 -  MDF based Acoustic Overlay Board
Guide Price
21mm JCW Acoustic Soundboard Premium 21 - MDF based Acoustic Overlay Board
Guide Price: £22.70 (£27.24 inc VAT)
To add to cart change quantity to minimum of 50. If you need less, ask for a price or add to a quote list.
  • Product Code: A1-1968
  • Delivery Time: 2 - 3 working days
  • Brand: JCW
  • (Tech. support: 08453402858)
  • Model and Size: 1200x600mm - 0.72m2
  • Weight: 7.00kg
Our ratings on 09-06-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

21mm JCW Acoustic Soundboard Premium 21 - MDF based Acoustic Overlay Board

Width: 600mm
Length: 1200mm
Density: 46.3kg/m3
Weight/m2: 9.73kg
Weight: 7kg

21mm JCW Acoustic Soundboard Premium 21 is a moisture resistant 9mm TG4 MDF Board with a pre-bonded 12mm high performance resilient layer offering an excellent airborne and impact sound reduction. This is one of the quickest and most effective acoustic solutions on the market. At just 21mm thickness the JCW Soundboard Premium 21 minimises construction height whilst still complying with statutory regulations. 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.

CHARACTERISTICS
  • An ideal solution where construction heights are a problem,
  • Easy to install,
  • Ideal acoustic overlay board for existing timber floors,
  • Exceptional impact sound performance,
  • Effectively improves airborne sound insulation,
  • Complies with Part E of the Building Regulations,
  • Ready for final floor installation



APPLICATION
  • New build
  • Refurbishments
  • Domestic upgrade
  • On timber floors
INSTALLATION
  • JCW Acoustic Soundboard Premium 21 boards are best laid towards the end of the project to protect from general trades, high floor loading and moisture leading to expansion.
  • Ensure that the floor surface is flat, dry, and free from all debris.
  • Ensure that the wall surfaces are prepared - plaster skimmed or plaster boarded down to the level of the sub-deck and that there are no gaps at wall edges.
  • Apply 5mm foam flat wall JCW Perimeter Edging Strip or L shaped strips to the base of all perimeter walls allowing approximately 15mm excess foam above the finished acoustic board height. This can later be folded down on top of the acoustic floor surface to isolate the skirting boards.
  • Remove any tongues at the wall edges, then cut & scribe the first corner board into place and butt up to the Edging Strip. Do not compress the JCW Perimeter Edging Strip.
  • Ensure all T&G board joints must be fully adhesive bonded using a recommended adhesive.
  • Proceed with the second and successive rows ensuring that all board joints are staggered. The last row of boards will require accurate cutting & scribing to butt up to the wall.
  • Any minor gaps between the JCW Perimeter Edging Strip and the acoustic board must be filled with JCW Acoustic Sealant/Mastic.
  • It is imperative that the JCW Perimeter Edging Strip is not compressed in order to maintain acoustic isolation and an allowance for expansion.
  • At the door threshold leave a 5mm gap between the adjoining acoustic boards and fill with JCW Acoustic Sealant. If the sub-floor at the doorways is not flat, the acoustic boards may require additional base support to reduce compressive joint movement. Additionally the surface joints could be sanded up to 5mm to level if required.
  • The finished floor should not be walked on for a period of up to 24 hours to allow the adhesive to cure undisturbed.
  • Ensure that the board joint adhesive has fully cured prior to overlaying any final floor covering.
CERTIFICATION

JCW Acoustic Soundboard Premium 21 board has been independently tested in a UK Verified independent UKAS accredited laboratory.

50mm JCW Acoustic Batten 50C
Guide Price
Brand: JCW Model and Size: 50x42x1800mm
Delivery Time: 2 - 3 working days
JCW Acoustic Batten 50C is a 10mm pre bonded open cell, recycled polyurethane resilient layer to a 40mm timber batten for use on concrete subfloors. The JCW Acoustic Batten 50C offers an exceptional reduction in impact sound, whilst maintaining a high compression strength. They can be overlaid with ..
Guide Price: £5.67
£6.80 inc VAT
Get Best Price
24mm JCW Acoustic Soundboard Supreme 24 -  MDF based Acoustic Overlay Board
Guide Price
Brand: JCW Model and Size: 1200x600mm - 0.72m2
Delivery Time: 2 - 3 working days
24mm JCW Acoustic Soundboard Supreme 24 is a moisture resistant 9mm T&G MDF Board with a pre-bonded 15mm high performance resilient layer offering an excellent airborne and impact sound reduction. This is one of the quickest and most effective acoustic solutions on the market. 24mm thickness the..
Guide Price: £28.82
£34.58 inc VAT
Get Best Price
27.5mm JCW Acoustic Silent Board - Acoustic Wall Liner
Guide Price
Brand: JCW Model and Size: 1200mm x 1200mm - 1.44m2
Delivery Time: 2 - 3 working days
27.5mm JCW Silent Board is an acoustic wall liner manufactured by laminating a 15mm acoustic resilient layer to a 12.5mm layer of acoustic grade plasterboard to drastically reduce sound transmission. It can be applied to either masonry or stud walls and is also suitable to reduce flan..
Guide Price: £57.27
£68.72 inc VAT
Get Best Price
10mm JCW Impacta Rubber Roll
Guide Price
Brand: JCW Model and Size: 1m x 10m - 10.0m2
Delivery Time: 2 - 3 working days
10mm JCW Impacta Rubber Roll is Sound Insulation System for concrete floors, robust resilient under screed layer system. It is suitable for precast and solid concrete floors (minimum weight 300kg/m2). JCW Impacta Rubber is a tough, puncture-proof, heavy material designed for the professional buildi..
Guide Price: £162.77
£195.32 inc VAT
Get Best Price
24.5mm JCW Acoustic Silent Board Eco - Acoustic Wall Liner - 1200mm x 1200mm 24.5mm JCW Acoustic Silent Board Eco - Acoustic Wall Liner - 1200mm x 1200mm
Guide Price
Brand: JCW Model and Size: 1200mm x 1200mm - 1.44m2
Delivery Time: 2 - 3 working days
24.5mm JCW Silent Board is an acoustic wall liner manufactured by laminating a 12mm acoustic resilient layer to a 12.5mm layer of acoustic grade plasterboard to drastically reduce sound transmission. It can be applied to either masonry or stud walls and is also suitable to reduce flanking noise up a..
Guide Price: £49.17
£59.00 inc VAT
Get Best Price
JCW Acoustic Screed Foam Pack - Concrete Floor Under Screed Resilient Layer
Guide Price
Brand: JCW Model and Size: JCW ASFP - 62.40m2
Delivery Time: 2 - 3 working days
JCW Acoustic Screed Foam Pack is a complete concrete floor under screed resilient layer pack containing JCW Acoustic Screed Foam, JCW Acoustic Flanking Strip and JCW Acoustic Flanking Strip. This is a big value acoustic foam pack which reduces impact and airborne noise on concrete floors. Acoustic ..
Guide Price: £272.49
£326.99 inc VAT
Get Best Price
This product is listed in the following categories and systems (click to show).