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Floor Soundproofing

Slim interlocking acoustic floating floor overlay system for concrete floors to reduce impact sounds

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18mm, 23mm, 27mm


Impact noise


Concretedeck 18 51dB 53dB
Concretedeck 23 53dB 53dB
Concretedeck 27 53dB



Directly over concrete flooring


DIY competent

Reasons to use the Noisedeck 18T

  • Soundproofing floors: Slim floating floor system increases sound insulation performance and reduces impact sounds through concrete floors.
  • Application: It is suitable as an overlay system over a concrete floor. When installed with a suitable ceiling, it is compliant with Part E.
  • Ease of fitting: The homeowner can do a straightforward DIY installation.
  • Customer support: With extensive product knowledge, we can provide help and advice on all aspects of your soundproofing journey
  • Nationwide Delivery: Materials are delivered from stock, so there are no extended lead times.

Product information

concrete floor soundproofing concretedeck

  1. P5 V313 moisture-resistant chipboard 22mm, 18mm and 12mm
  2.  A layer of cross-linked Isopoli 5.5 mm


  • Concretedeck 27 – 2400mm x 600mm x 27mm
  • Concretedeck 23 – 2400mm x 600mm x 23mm
  • Concretedeck 18 – 2400mm x 600mm x 18mm


  • Concretedeck 27 – 22.8kg per sheet
  • Concretedeck 23 – 18.8kg per sheet
  • Concretedeck 18 – 13.0kg per sheet
Product DnT,w+ Ctr L’nT,w
Concretedeck 18 51dB 53dB
Concretedeck 23 53dB 53dB
Concretedeck 27 53dB 54dB

When installed as part of a complete party floor construction, it enables a concrete floor to meet the sound transmission standards of ADE 2003 and subsequent amendments in 2004, 2010, 2013 & 2015

Note: Every 10 decibels(dB) reduction in noise level is roughly perceived as a halving of the perceived loudness. So, for instance, if you have a sound that measures 70dB and it decreases to 60dB, it would sound about half as loud to the human ear. Decibels Explained.

Concretedeck 27mm, 23mm, 18mm

  • ≥300kg/m2 hollow core concrete with 80kg/m2 sand/cement screed or 40mm screed
  • Min. 75mm void formed by metal frame suspended ceiling system with ≥10kg/m2 plasterboard board ceiling (top) or 50 x 75mm timber battens.
  • ≥10kg/m2 plasterboard board ceiling supported on resilient bars @ 400mm centres, perpendicular to the battens min 75mm below the underside of sub-floor.

Lay Concretedeck flooring over dry level screed in brick bond pattern, applying wood adhesive to all tongued and grooved panel joints. Apply a perimeter isolation tape on the edge of the wall just before the boards are pushed against the perimeter walls to isolate the board from the wall. Install skirting and trim off excess perimeter isolation tape.

Stud Partitions

Stud partitioning should be built from the subfloor wherever possible. It is good practice to isolate all partitions built from the sub-floor with Isolation Tape as this will improve the performance of the walls and the floors.

Skirting Boards and Architraves

Reduce flanking sound by isolating skirting boards and architraves from the flooring. Roll the isolation tape over the flooring and place the skirting board on top. Trim excess tape with a sharp knife.

Kitchens and Bathrooms

Install kitchen units onto the structural subfloor. Lay the concretedeck boards up to the legs of the units. Install the plinth to the legs of the units to finish. Use a plywood sheet or similar over the subfloor where floor heights need to be changed for white goods. The flooring should finish at the legs in the bathrooms, and the subfloor should support the bath. You should then install the bath panel to finish. You can use a plywood sheet below the toilet, bath and sink to ensure the floor height throughout.

Frequently bought together

Floor soundproofing FAQs

Impact noise through floors refers to the sounds generated by impact or physical contact on a floor surface that transmits to the space below. This could be footsteps, dropping objects, dragging furniture, or any action that causes vibrations and sound transmission through the floor’s structure.

Soundproofing materials, acoustic underlays, and floating flooring options are used to reduce the impact noise that travels between floors. Our Noisestop F7 Plus and Noisestop Acoustic Underlay are the best soundproof mats. The Noisedeck range of interlocking floating floors includes the Noisedeck 32, a direct to joist system and the Noisedeck 18T, a floor overlay system.

Installing soundproofing to the floor will give you the best results in reducing impact noise. However, ceiling solutions are also available to reduce impact noise from below.

Airborne noise refers to sound that travels through the air, like voices, music, or TV noise. To soundproof against airborne noise, you add mass and absorption materials to the floor.

Materials such as acoustic insulation and soundproof mats all help reduce airborne sound transfer between floors. The Noisestop F7 Plus is our highest performing acoustic underlay. Acoustic insulation DFM, 100mm between floor joists, is another way of increasing the mass and absorption of wooden floors.

You can lay the carpet directly onto acoustic underlays. You might use them in conjunction with a traditional carpet underlay for added comfort.

If the flooring you are using is below 14mm thick and you are using one of the acoustic underlays, you would need to use a resilient layer over the soundproofing to support the floor finish. Flooring over 14mm, such as engineered flooring and natural wooden floors, can be laid directly over the underlays.

Interlocking floors in the Noisedeck range already have a suitable base for any floor finish, so they do not require further treatment.

When installing soundproofing for your floors in these spaces, avoid directly placing kitchen units, baths, sinks, or toilets onto the soundproofing. To maintain consistent floor heights, employ a plinth beneath these items to ensure everything stays at the proper level.

Got a question?

If you need help or advice or would like to chat with us, please call 01423 339 163 or fill out this form. We’ll be in touch shortly.