Duralay Durafit 650 Underlay Green Bag – 6.5mm

£137.06 £127.92  per Box(£8.49/m²)

Area Covered by Box: 15.07 Sq.meter
Length ( Meter )
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In Stock

Delivered from Wed 28th Oct

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Why Choose This Floor?

Performance

High-density crumb rubber construction provides excellent durability and reliable support for heavy and wheeled traffic areas.

Comfort

Provides a supportive, cushioned feel underfoot while helping reduce impact noise with 29 dB sound insulation.

Installation

Suitable for both double-stick and stretch-fit installation, with a woven polypropylene backing for improved stability.

Maintenance

Durable construction is designed for demanding contract environments and helps maintain consistent performance with regular flooring care.

Room Compatibility

Ideal for commercial and contract spaces subject to heavy footfall and wheeled traffic, including offices, corridors and other busy areas.

Sample and Delivery Options

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Not sure which flooring is right for your home? Order up to 3 free samples and see the colour, texture and quality in your own space before you buy.

It’s the easiest way to choose with confidence. Our samples are carefully selected from the flooring range and delivered straight to your door.

Fast & Reliable Delivery

We deliver your flooring safely and efficiently across the UK, with delivery charges based on your order value and product selection. Orders placed before 11:00am may be eligible for next-working-day delivery, subject to stock availability.

Your flooring is carefully packed and protected throughout transit, helping ensure it arrives safely and ready for installation.

Technical Performance

Our flooring team can help with product suitability, installation requirements and delivery times. If you have any questions about this product or your project, we’re happy to help. Email us at sales@casaflooring.co.uk

Product construction

Brand

Duralay

Product

Durafit 650

Product Type

Carpet underlay

Material

High-density crumb rubber

Density

415 kg/m³

Dimensions and coverage

Thickness

6.5 mm

Roll Size

11 m × 1.37 m

Coverage per Roll

15.07 m²

Installation and warranty

Installation Method

Double stick or stretch fit

Product Code

DUR650-GRN

Performance ratings

Sound Insulation

29 dB

Thermal Insulation

1.10 tog

Use Classification

Heavy contract use

The subfloor should be clean, dry, smooth and free from dust, grease or other contaminants before fitting. For double-stick installations, apply a compatible adhesive evenly to the subfloor and then to the underlay as directed by the adhesive manufacturer. Follow the green stripe orientation and the carpet manufacturer’s fitting instructions.

Room Recommendations

Hotel Corridors

Reception Areas

Offices

Meeting Rooms

Restaurants

Bars & Hospitality Venues

Conference Halls

Public Buildings

Product Information

Duralay Durafit 650 is a high-density crumb rubber underlay developed for commercial carpet installations where durability matters most. At 6.5 mm thick, it provides a firm, stable foundation beneath carpet while offering more cushioning and insulation than the thinner Durafit 500.

It is particularly well suited to areas with regular footfall and wheeled traffic. The woven polypropylene backing supports dimensional stability, while the black surface makes it easier to see adhesive coverage during double-stick installation. A green stripe indicates the correct orientation when fitting.

Durafit 650 is designed for heavy contract use and can help carpet stay flatter and look better for longer in demanding environments. It is suitable for both double-stick and stretch-fit carpet installations.

Durafit 650 is designed for a double-stick carpet installation. Acclimatise the underlay in the installation area, then prepare a subfloor that is dry, smooth, clean and structurally sound. Remove loose debris, old adhesive residues and defects that could affect adhesion or show through the finished carpet.

Apply the specified adhesive to the prepared subfloor in accordance with the adhesive manufacturer’s coverage and tack-time instructions. Lay the underlay carefully into the adhesive, following the product’s backing markings for the correct orientation. Roll it thoroughly to achieve even contact, then form close, clean joints without overlaps.

Once the underlay bond has cured as required, install the carpet with a compatible adhesive. Ensure full adhesive transfer across the area, particularly at seams, borders, entrances and areas used by wheeled traffic. Roll and finish the carpet in line with the carpet and adhesive manufacturers’ instructions.

NEXT DAY DELIVERY
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STANDARD DELIVERY
We provide our best estimate of how long it will take to deliver an item when it is not marked as “Special Order” we will contact you to let you know if, for any reason, we are unable to dispatch your items within this expected time frame.
 
CLICK & COLLECT
Get it faster, skip the queue! We also offer our Click & Collect service. We’ve got a huge range of floorings in stock, which means we can have it with you when you need it, nationwide.
 
Please note that our delivery services may be affected over bank holidays, during sale periods or due to force majeure events.
For further information on our delivery policy please see our Terms and Conditions

Once the carpet is installed, Duralay Durafit 650 needs no separate cleaning or surface treatment. The high-density crumb-rubber underlay is designed to provide stable support beneath contract carpet in demanding spaces, helping the finished floor retain a more even appearance over time.

Keep the flooring assembly dry. Investigate leaks, flooding or excessive wet cleaning promptly, as moisture trapped beneath the carpet can affect the adhesive bond, subfloor and surrounding finishes. Any damaged area should be assessed before the carpet is put back into service.

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Ready to Choose Your Flooring?

Order a free sample to see the colour and finish in your space, or request a quote if you’re ready to discuss your flooring requirements.