Menu
Menu
Your Cart

34mm JCW Acoustic Deck 34C - Direct to Joist Acoustic Overlay Board

34mm JCW Acoustic Deck 34C -  Direct to Joist Acoustic Overlay Board
Guide Price
34mm JCW Acoustic Deck 34C - Direct to Joist Acoustic Overlay Board
Guide Price: £55.86 (£67.03 inc VAT)
Price per m2: £38.79/m2 (£46.55 inc VAT)
To add to cart change quantity to minimum of 28. If you need less, ask for a price or add to a quote list.
  • Product Code: A1-4133
  • Delivery Time: 2 - 3 working days
  • Brand: JCW
  • (Tech. support: 08453402858)
  • Model and Size: 2400x600mm - 1.44m2
  • Weight: 26.50kg
Our ratings on 26-08-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

34mm JCW Acoustic Deck 34C - Direct to Joist Acoustic Overlay Board

Width: 600mm
Length: 2400mm
Board Coverage: 1.44m2
Density: 78kg/m3
Weight/m2: 18.4kg
Weight: 26.5kg

34mm JCW Acoustic Deck 34C is a premium quality overlay board with a 12mm resilient acoustic layer laminated to a 22mm P5 T&G chipboard. The slim profile and high acoustic performance makes it ideal for timber floor refurbishment projects. Acoustic Deck 34C is ideal for overlaying directly to an existing sub-floor.

CHARACTERISTICS
  • An ideal solution where construction heights are a problem,
  • Easy to install,
  • Suitable for for new flooring systems or upgrades to existing separating floors,
  • An economical product for Conversion projects
  • Offers good impact sound improvement,
  • Deck ready for final floor finish e.g.laminates, carpets and carpet tiles,
  • Overlaid onto flat timber floors.



APPLICATION
  • New build,
  • Refurbishment,
  • Domestic upgrade,
  • On concrete and timber floors
INSTALLATION
  • JCW Acoustic Deck 34C boards are best laid towards the end of the project to protect from general trades, high floor loading and moisture leading to expansion.
  • The boards must be dry and acclimatised at least 24 hours prior to installation, this will minimise any expansion or contraction after installation.
  • When using JCW Acoustic Deck 34C as a structural board, it must be laid on to flat or levelled joists in the opposite direction of the joists.
  • Use tungsten carbide tipped blades for cutting at all times. Particle Board can be drilled using conventional portable drilling machines. It is a wood and cement panel, therefore does not require percussion drilling. It can be sanded using a vibrating sanding machine or belt sanding machine.
  • Ensure that the floor surface is flat, dry, and free from all debris and that the wall surfaces are prepared - plaster skimmed or plaster boarded down to the level of the sub-deck. There shouldn't be any 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 Deck 34C board has been independently tested in a UK Verified independent UKAS accredited laboratory.

16.5mm JCW Acoustic Noiseboard 10 - Acoustic Wall Liner - 1200mm x 1200mm 16.5mm JCW Acoustic Noiseboard 10 - Acoustic Wall Liner - 1200mm x 1200mm
Guide Price
Brand: JCW Model and Size: 1200mm x 1200mm - 1.44m2
Delivery Time: 2 - 3 working days
16.5mm JCW Noiseboard 10 is an acoustic wall liner manufactured by laminating a 4mm acoustic resilient layer to a 12.5mm layer of acoustic grade plasterboard to drastically reduce sound transmission. It is a high-performance acoustic overlay improvement board, specifically designed for both new..
Guide Price: £42.73
£51.28 inc VAT
Get Best Price
5mm JCW Impacta Rubber Roll
Guide Price
Brand: JCW Model and Size: 1.05m x 10m - 10.50m2
Delivery Time: 2 - 3 working days
5mm 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 buildin..
Guide Price: £93.82
£112.58 inc VAT
Get Best Price
19mm JCW Acoustic Deck 19 -  MDF based Acoustic Overlay Board
Guide Price
Brand: JCW Model and Size: 1200x600mm - 0.72m2
Delivery Time: 2 - 3 working days
19mm JCW Acoustic Deck 19 is an MDF based acoustic overlay board for shallow platform floor systems, for use with robust standard detail concrete floor constructions and for use with PCT timber floor constructions. It is 9mm t&g MDF board laminated to a 10mm acoustic resilient layer.CHARACTERISTICS ..
Guide Price: £16.86
£20.23 inc VAT
Get Best Price
10mm JCW Impactalay 10 Acoustic Mat for Timber and Concrete Floors
Guide Price
Brand: JCW Model and Size: 1200x1000mm - 1.20m2
Delivery Time: 2 - 3 working days
10mm JCW Impactalay 10 Acoustic Mat is a remarkably cost-effective and one of the quickest and most effective acoustic solutions on the market. It increases airborne sound insulation and reduces impact noise transmission so much that there is no need for the installation of false floors or false wal..
Guide Price: £26.75
£32.10 inc VAT
Get Best Price
37mm JCW Acoustic Deck 37 - Cement Particle based Direct to Joist Board 37mm JCW Acoustic Deck 37 - Cement Particle based Direct to Joist Board
Guide Price
Brand: JCW Model and Size: 1200x600mm - 0.72m2
Delivery Time: 2 - 3 working days
37mm JCW Acoustic Deck 37, a 15mm resilient acoustic layer laminated to a 22mm T&G cement particle board, designed for fitting direct to joist. Acoustic Deck 37 is specially designed for direct to joist fitment after existing timber floor has been removed. After removing existing timber floors, ther..
Guide Price: £52.47
£62.96 inc VAT
Get Best Price
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
This product is listed in the following categories and systems (click to show).