Combifelt Acoustic
Combifelt Acoustic Thicknesscombifelt-roll-size

QA CombiFelt Acoustic

Heavy-Duty Carpet Underlay

Density (Airborne) - 2.44kg/m² Roll Weight - 24.4kg Thickness - 10mm Roll Size - 10m² Impact Noise Reduction - 34dB Material - Felt-Rubber
Actual Area (sq m) 10
Total Price £54.00

£54.00 (ex VAT) / £64.80 (inc VAT)

Comfort Rating

Durability Rating

Sound Reduction

Tog Rating

Perfect for Comfort, Impact Noise Reduction, Durability, Bounceback, Contract and Residential Use. Fire Retardency and Warmth.

QA Combifelt Acoustic 10mm Carpet Underlay is a luxury felt and rubber combination underlay exceeding Heavy Contract Use (BS 5808:1991); for carpet; heavy domestic and heavy contract installations. The ultra-strong crumb rubber backing means this is an underlay with long life performance.

It offers great durability along with excellent impact noise reduction properties – and on top of all its other benefits, CombiFelt Acoustic can be used on stairs and is fire retardant, giving you extra peace of mind.

  • Luxurious – a truly plush feel under your feet, it is the ideal choice for luxury settings, Axminster and quality twist carpets.
  • Built to Last – designed for fantastic durability, it won’t crumble over time and takes even the heaviest load in its stride.
  • Shhh! Quiet – CombiFelt Acoustic has unbelievable impact sound insulation and you will notice a real difference in noise levels.

QA Performax Underlays are designed for those wanting specialist, contract or high performance at great value prices. With added-value technical benefits such as thermal insulation, vapour barrier lamination, acoustic management, high traffic resilience and underfloor heating enhancement. QA Combifelt is one of those such products.

Click here to view our underlay fitting guide

Product Specification

Additional Information

Dimensions 730 x 137 cm


Roll Area


Roll Length


Roll Width




Roll Weight


Impact Noise Reduction


Heat Insulation





Felt/Crumb Rubber


Stretch Fit


Heavy Contact and Heavy Domestic


Delivery Charges


Standard (3 Days) Next Day
£0 – £199 ex VAT £15 £40
£200+ ex VAT FREE £25

Soundproofing, Laminate, Real Wood & Carpet Tiles

Standard (3 Days)
£0 – £199 ex VAT £30
£200+ ex VAT FREE

Important Information

    • Standard delivery is 3-5 working days
    • Order with multiple product types will have compound delivery costs, please call for for more information.
    • Due to the bulky nature of certain products and insurance / liability issues, the couriers will only deliver to kerbside. (they cannot be expected to carry goods up to your flat for example)
    • The cost for soundproofing are higher as these must be delivered in pallets which is a higher cost.
    • There is a 40% restocking fee on all soundproofing products.

Underlay-Delivery-Info-RHS (1)Ordering

We aim to dispatch all orders between 3 to 5 working days. As your order is now with our courier network it is subject to adverse weather conditions and road networks, so please be patient.

We deliver from Monday to Friday between 9am and 6pm. We assume that access is available for vehicles for all deliveries and for HGV’S for larger orders. Deliveries are door-to-door and the driver can not be expected to take them inside the property. We request that someone is available to sign for the goods upon delivery.

It is imperative that you the customer are available to sign for the goods upon delivery. Please ensure that your goods are inspected, prior to signature for damage. Once the goods have been signed for in “Good Condition” the carrier and Flooring Warehouse Direct will reject any claim for damages or compensation. Any damage or short delivery should be reported to us within 24 hours of receipt of delivery.

We highly recommend that when booking fitters, more time is allowed for delivery as orders are subject to such things as credit checks, stock availability and delivery conditions which can mean the order may be delayed. If you have any questions, please contact us before making an order.


If you decide to return any good we recommend you do so within 14 days of receipt. Sadly, we have to exclude any products that have been altered in any way (cut-to-size, made-to-measure etc.)

If you do send the goods back for any reason, please let us know so we can send you our warehouse address. Upon receipt of the goods appropriate credit will be issued.

Is this right for me?

This product reduces impact noise by 34dB.

The table below demonstrates the level of decibels (dB) experienced from common everyday noises:

Decible (Unit)
Noise Type
Low threshold of hearing - the softest sound you can hear
Leaves rustling in the breeze / Quiet whisper
Average whisper
20 - 50
Quiet conversation
40 - 45
Hotel lobby conversation
50 - 65
Loud(ish) conversation
65 - 70
Moderate traffic / Hair dryer
65 - 90
75 - 80
Factory (medium) / Washing machine
Heavy traffic / Petrol lawn mower / Busy city
90 - 100
Thunder / Walkman / Traktor
Boom box on high volume / Chain saw / Leaf blower
Shouting / Symphony concert
Rock concert
Ambulance siren
Threshold of pain / Firework display / Gunshot
Airplane takeoff from short distance away
140 - 190
Space rocket takeoff

Ask a Question

  • Which Of These Are Most Important ? You May Add More Than One