Best Flooring Underlay — PU Foam + Mid-range (2026)
5 flooring underlay matching material “PU Foam” + price “Mid-range”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Flooring Underlay UK (2026) guide.
PU Foam Mid-Range Flooring Underlay offers a versatile solution for enhancing the comfort and acoustic properties of your floors. Constructed from high-density PU foam, this underlay is designed to distribute weight evenly, reducing impact noise and vibration transmission. It’s particularly well-suited for areas with hard flooring like laminate or vinyl, acting as a crucial layer between the floor and your feet – providing cushioning and creating a warmer feel.
This mid-range option balances performance with value, making it ideal for both residential and light commercial spaces. The foam's density provides excellent support while maintaining flexibility, allowing it to adapt to slight variations in flooring surfaces. Its open-cell structure also allows for improved air circulation beneath your floorboards, which can help prevent moisture buildup.
When considering PU foam underlay, remember that its performance is heavily influenced by the quality of installation and the type of flooring it’s applied to. For optimal results, ensure a smooth subfloor and follow manufacturer's recommendations regarding thickness and coverage. This versatile product contributes significantly to a quieter, more comfortable living space.
#1 Pick
PU Foam 10mm Thick Carpet Underlay Roll by 247Floors- PU Foam
- 10mm
£54.95
Pros
- Thick 10mm PU foam adds noticeable cushioning and warmth underfoot
- Strong review base for a dedicated flooring-brand underlay
- Helps with sound and thermal insulation under carpet
Cons
- Heavier roll than thinner underlay options, so needs help to move and lay
£42.99
Pros
- Large 15m² roll covers bigger rooms without multiple orders
- 8mm PU foam gives solid cushioning under carpet
- Straightforward roll-out fitting
Cons
- Smaller review count than more established underlay brands
#3 Pick
10mm Thick PU Carpet Underlay Rolls, Choose from 30 Sizes, 10m² Total Area, UK Manufactured- PU Foam
- 10m²
£39.99
Pros
- UK-manufactured underlay with a strong review base
- Choice of 30 sizes makes it easy to match odd room dimensions
- 10mm thickness gives a quality, cushioned feel underfoot
Cons
- Larger sizes are bulky to handle and store before fitting
#4 Pick
12mm Thick PU Carpet Underlay, 15 Square Metre Roll, UK Manufactured, Hard Wearing- PU Foam
- 15m²
£48.99
Pros
- 4.7-star rating from over 1,600 UK reviews
- 12mm thickness gives a plush, cushioned feel underfoot
- Full 15m² roll covers most standard rooms in one order
Cons
- Bulky roll, so check delivery access before ordering
#5 Pick
FloorPro 10mm Carpet Underlay - DIY Roll 1m x 5m - PU Foam With Sound And Insulation - Underfoot Comfort Cushion Padding Underlayment - Ideal For Stairs- PU Foam
- 1m x 5m
£27.50
Pros
- 4.8-star rating from UK buyers
- 10mm PU foam gives strong underfoot cushioning and sound insulation
- 1m x 5m roll works well for stairs and smaller rooms
Cons
- 5m² roll size means larger rooms need more than one roll
FAQ
What is PU foam underlay made from?+
PU foam underlay is primarily composed of polyurethane (PU) foam – a synthetic polymer known for its excellent cushioning and vibration damping properties. The density of the foam varies depending on the specific product, influencing its performance characteristics.
How thick should I buy PU foam mid-range flooring underlay?+
For a mid-range option like this, a thickness of 12mm to 20mm is generally recommended. Thicker underlays offer greater noise reduction and comfort but will also increase the overall floor height.
What types of flooring can I use this with?+
PU foam underlay is commonly used with laminate, vinyl, wood, and even some carpet installations. It’s particularly effective for reducing impact noise in these environments.
Does PU foam attract dust or allergens?+
While PU foam itself doesn't inherently attract dust, it does create a surface area where dust particles can accumulate. Regular vacuuming with a low-pile attachment is recommended to maintain cleanliness.
How will this underlay affect the overall floor height?+
Adding 12mm – 20mm of PU foam underlay will increase the total floor level by that amount. This should be considered when installing fitted carpets or furniture.
Is it suitable for use in a downstairs bathroom?+
Yes, this mid-range PU foam underlay is generally suitable for use in bathrooms and kitchens where moisture exposure is present, but always check the manufacturer's specifications for specific moisture resistance ratings.
What’s the benefit of using underlay compared to installing flooring directly onto a hard surface?+
Underlay provides crucial cushioning, noise reduction, and impact absorption, significantly improving comfort and reducing floor-to-floor sound transmission. It also protects your new flooring from damage caused by foot traffic and impacts.
How does PU foam underlay compare to other types of underlay (e.g., felt)?+
PU foam offers superior cushioning and noise reduction compared to traditional felt underlays, thanks to its denser structure and ability to dampen vibrations more effectively.
What is the lifespan of PU foam flooring underlay?+
With proper installation and maintenance, a good quality mid-range PU foam underlay can last for 10-20 years. Regular vacuuming will help maintain its performance and extend its lifespan.
Can I cut or trim the PU foam underlay to fit my space?+
Yes, you can easily cut PU foam underlay using a utility knife or scissors. Ensure you use a sharp blade and work on a stable surface to avoid damaging the material.