SO Flooring Products
King 8.3mm Sponge Rubber Underlay
1 roll covers 10.96 m²
Available to buy
£113.39inc VAT
per roll
£94.49 ex VAT
£10.35 per m² inc VAT
Carpet & Flooring Underlay — Trade Supplier
24 productsUnderlay is the foundation of a comfortable, long-lasting floor, and our trade range covers carpet, laminate, vinyl and engineered wood. We supply PU foam, crumb rubber and sponge underlays from leading names such as Interfloor and JHS, with options to suit domestic, contract and commercial specifications.
Product results
Product results
Showing 12 of 24 products
SO Flooring Products
GRANDURO 11mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£66.14inc VAT
per roll
£55.12 ex VAT
£4.39 per m² inc VAT
SO Flooring Products
FR7 7mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£79.64inc VAT
per roll
£66.37 ex VAT
£5.28 per m² inc VAT
SO Flooring Products
SO 10 10mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£39.65inc VAT
per roll
£33.04 ex VAT
£2.63 per m² inc VAT
SO Flooring Products
HEATFLOW CARPET 6.1mm Sponge Rubber Underlay
1 roll covers 10.00 m²
Available to buy
£89.09inc VAT
per roll
£74.24 ex VAT
£8.91 per m² inc VAT
Interfloor
ALPHA 8 8mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£35.09inc VAT
per roll
£29.24 ex VAT
£2.33 per m² inc VAT
Interfloor
OMEGA 10 10mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£39.14inc VAT
per roll
£32.62 ex VAT
£2.60 per m² inc VAT
Interfloor
SUPER 12 12mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£48.93inc VAT
per roll
£40.78 ex VAT
£3.25 per m² inc VAT
SO Flooring Products
Cirrus 9mm PU Carpet Underlay
1 roll covers 15.07 m²
Available to buy
£90.44inc VAT
per roll
£75.37 ex VAT
£6.00 per m² inc VAT
SO Flooring Products
Cumulus 11mm PU Carpet Underlay
Pack size needs confirmation
1 roll covers 15.07 m²
Available to buy
£102.59inc VAT
per roll
£85.49 ex VAT
£6.81 per m² inc VAT
SO Flooring Products
Resilient 250 2.5mm Acoustic Underlay
1 roll covers 10.00 m²
Available to buy
£106.64inc VAT
per roll
£88.87 ex VAT
£10.66 per m² inc VAT
SO Flooring Products
Silentfloor Gold Noise Reducing Wood & Laminate Underlay
1 roll covers 10.00 m²
Available to buy
£43.19inc VAT
per roll
£35.99 ex VAT
£4.32 per m² inc VAT
The right underlay improves comfort underfoot, extends the life of the floor covering, and boosts thermal and acoustic insulation. We stock acoustic underlays for sound reduction in flats and offices, heavy-domestic grades for busy homes, and combination underlays designed for use over underfloor heating.
All of our underlay is supplied in trade roll sizes for efficient installation and competitive pricing on larger jobs. If you need help calculating coverage or matching tog ratings and density to a specification, phone our team and we'll point you to the best underlay for the project.
What to check before you order
- Underlay is sold by the roll — check the roll coverage on the product page and round up to whole rolls.
- Carpet underlay and hard-floor underlay are not interchangeable; laminate, LVT and wood need a firmer, thinner product.
- Over underfloor heating, choose an underlay rated for that use and keep the total tog low so the heat reaches the room.
- For flats and offices, check whether an acoustic rating is specified before ordering.
Underlay questions
- How much underlay do I need?
- Take the room area in square metres, add an allowance for cuts, then divide by the roll coverage shown on the product page and round up to the next whole roll.
- Can I use underlay with underfloor heating?
- Only where the product states it is suitable. A high-tog carpet underlay insulates the floor and reduces heat output, so a low-tog underlay designed for heated floors should be used instead.