Karma Overlay 28 Acoustic Floor Panels

Karma Overlay 28 boards offer a high performance impact and airborne noise reduction solution. In addition, they are ideal for refurbishments and can be laid directly on top of sub-floors for additional height. If you are a DIYer, please contact our team for soundproofing help and advice.

Impact Rating

Rated at 50 dB

Airborne Rating

Rated at 48 dB


28 mm


Covers 1.44m2


20.16 kg


£19.78 /m²

ex VAT


£23.74 /m²

inc VAT
Actual Area (sq m) 1.44
Total Price £28.49

Product Description

Karma Overlay 28 is a high performance acoustic floor panel with an exceptionally high sound reduction performance to height ratio. The combination of P5 chipboard and cross linked polyolefin foam make the Overlay 28 a complete sound proofing solution, tackling both impact and airborne noise.

The 18dB rating may not appear to be as good as some of the other Karma range products, but the overlay 28 will provide a substantial improvement in terms of impact and airborne noise reduction.

• Excellent impact and airborne noise reduction
• Minimal height increase
• Can be used with any floor finish
• Cost-effective solution
• Non-load bearing partitions and can be built off the finished floor surface
• Can be used on existing subfloors or concrete/screed floors
• Eliminates the requirement for a damp proof membrane
• Versatile – can be finished with all types of floor finish
• When tested in conjunction with an existing sub-floor the overlay 28 has been deemed fit to satisfy requirements of Approved Document E
• The T&G profile makes the installation process extremely easy
• The P5 chipboard has an exceptional fire rating



The soundproofing ratings of this product are 50dB impact and 48dB airborne.

These figures aren’t a measure of the reduction that the product gives, but is the figure that you would get following a soundproofing test after fitting, on the same or a similar full floor set-up to the one used during testing (not just the product in isolation).

Please see the product specification for more details on how these figures were achieved.

Need Some Assistance?

If you need any assistance in understanding our product range, please don’t hesitate to call our customer service team on 01484 411888.

Technical Specification

Area 1.44m2
Dimensions 2.4m x 0.6m x 0mm
Thickness 0mm
Weight 20.16kg
Impact Noise Rating 50dB

The information given here may vary and is partly based on information from our suppliers. It represents the prevailing level of expertise and is not binding in a legal sense. The compliance of legal requirements lies within the customers own responsibility.

You can find all of the information shown here on one of our product data sheets which are in a PDF format. You can download this below.

Technical Data Sheet
Product Data Sheet


On average, this item takes 2 to 3 working days to be delivered to a UK Mainland address.

Our delivery rates are calculated on an order value basis. All standard deliveries are delivered by couriers (company variable) and can be received up to 3 to 5 working days from order (6 working days if you order after 12.30pm on a weekday).

All available delivery options for this item can be selected at the check-out and if you order before 12pm Monday to Friday, your order will be processed the same day.

Need it quickly?

We may be able to deliver this item on a next day service, please contact us to arrange this prior to ordering.

Please note: this item is delivered on a double pallet – a surcharge of £45+vat will be charged on top of any usual carriage rates.

The Small Print Stuff

You should never book fitters before you have received your goods, we cannot be held responsible for costs incurred by yourself as a result of delivery complications and/or delays.

Deliveries are palletised and heavy, therefore our delivery services are to kerb-side only – you will be responsible for moving the goods from the roadside to the property.

Shortly after placing your order, you will receive a delivery date confirmation email. This email will detail the day of delivery which can take place any time between 8am and 6pm. If you require a more accurate time slot, please contact us prior to ordering and we’ll do our best to assist you; this could be at an additional cost.

For full delivery details, including timescales and Terms & Conditions, please click here

Some of our customers

FWDirect is registered at Unit 3 Cartwright Court, Bradley, Huddersfield, HD2 1GN
Company Number: 13803717 | Vat Number: 408563392 | FWDirect is part of BD Commerce Ltd