
King 8.3mm Sponge Rubber Underlay
£113.39 inc. VAT
£94.49 ex VAT · per roll
£10.35 per m²
Sold per roll — 1 roll covers 10.96 m²
Each roll covers 10.96 m² — £113.39 per roll.
Flooring is supplied in full rolls.
How much flooring do I need?
One roll covers 10.96 m². Flooring is supplied in full rolls, so we always round up.
Enter your room length and width to see how many rolls you need.
Quantity (rolls)
Total £113.39 inc. VAT — 1 roll covering 10.96 m²
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Ordered before 2pm on a working day? Stocked lines are dispatched the next working day. Dispatch is not the same as delivery — parcels usually arrive 1–2 working days after dispatch, pallets 2–3.
Product advice: 07927 556 532
Check delivery to your postcode
1–2 working days to most of uk mainland after dispatch. Your exact charge is shown at checkout before you pay — or call 07927 556 532 for a delivered price.
Product Overview
Luxury comfort with class-leading acoustic performance. The King 8.3mm Sponge Rubber Underlay is rated for luxury use and delivers an impressive 42dB sound reduction — one of the highest in its class — making it an outstanding choice for bedrooms, lounges, and upper-floor rooms where noise reduction is a priority.
Its sponge rubber construction provides a soft, cushioned feel underfoot while maintaining the resilience needed to support your carpet for years to come.
The King — because some rooms deserve the very best in comfort and quiet.
Browse more Underlay · View all SO Flooring Products products
Key Benefits
- End Use: Luxury (L/U)
- Thermal Resistance: 0.8 tog
- Sound Reduction: 42dB
- Luxury rated — delivers a premium feel underfoot
- Sponge rubber construction for lasting resilience and comfort
- Thermal insulation for a warmer floor
- Extends carpet life by absorbing daily foot traffic impact
Specifications
| Thickness | 8.3mm |
|---|---|
| Roll Size | 10.96m² (8.24m x 1.33m) |
- Brand
- SO Flooring Products
- Product type
- Underlay
- Price basis
- per roll
Coverage & Pack Information
Sold per roll — 1 roll covers 10.96 m²
Works out at £10.35 per m² inc. VAT.
Use the pack calculator in the buying panel above to convert your m² into the number of rolls required, with an optional 10% waste allowance.
Suitable Applications
- Exceptional 42dB sound reduction — ideal for upper floors and noise-sensitive rooms
Installation Guidance
Always follow the manufacturer's own installation instructions supplied with the product. If you need the method statement or datasheet before you fit, call 07927 556 532 and we will send it over.
Delivery & Returns
Dispatch and delivery
Ordered before 2pm on a working day? Stocked lines are dispatched the next working day.
Next working day dispatch is not a guaranteed next-day delivery. Once dispatched, parcel items typically arrive in 1–2 working days and palletised items in 2–3 working days.
Delivery is quoted per order based on weight, pallet requirement and postcode. Your exact charge is shown at checkout before you pay.
Returns
Unused, unopened goods in their original packaging can be returned within 14 days of delivery. Call us first on 07927 556 532 so we can raise a returns reference.
Manufacturer Warranty
No warranty term is published in SO Flooring Products's product data for this line, so we do not quote one here. Goods are covered by your statutory rights, and we will confirm any manufacturer warranty in writing before you order — call 07927 556 532.
Technical Documents & Datasheets
Technical Data Sheet (TDS)
No datasheet is attached to this product yet. Call 07927 556 532 or contact us to request the TDS or safety data sheet.
Customer Reviews
No reviews have been left for this product yet. We only publish verified reviews from real customers, so you will never see invented ratings here.

