Product Specifications
Technical Details
All the essential information you need to know about this product, at a glance.
5.5mm
590mm
790mm
7.0m²
15%
25 Years
5.5mm Fibreboard Underlay
Where serious performance meets everyday practicality. Our 5.5mm Fibreboard Underlay is the premium choice for homeowners who want exceptional stability, outstanding insulation, and long-lasting noise reduction beneath their laminate or engineered wood flooring.
Key Benefits
- Superior Stability — Dense fibreboard construction provides a rock-solid base, eliminating flex and movement.
- Thermal Insulation — Keeps rooms warmer for longer, reducing energy costs.
- Excellent Noise Reduction — Absorbs impact sound more effectively than standard foam underlays.
- Levels Minor Imperfections — Compensates for small sub-floor irregularities for a flawless finish.
Specifications
- Thickness: 5.5mm
- Coverage: 7m² per box
- Suitable for: Laminate & Engineered Wood Flooring
Upgrade your underlay. Upgrade your floor.
| Thickness | 5.5mm |
| Plank Width | 590mm |
| Plank Length | 790mm |
| Pack Coverage | 7.0m² |
| Wastage Allowance | 15% |
| Guarantee | 25 Years |
1Allow the flooring to acclimatise in the room for at least 48 hours. Keep packaging sealed until ready to fit.
2Ensure your subfloor is clean, dry, flat and structurally sound. Maximum deviation 3mm over 1.8 metres.
3For floating installations, lay a suitable underlay if not included. Leave a 10–15mm expansion gap around all perimeters.
4Fit the boards following the fitting guidance supplied with this floor. Work left to right across the room.
5Inspect each plank before fitting. Do not install damaged boards. We cannot accept returns on flooring that has been cut or fitted.
→Nationwide delivery from £39.99. Calculated at checkout based on your order and postcode.
→Choose your delivery date. Select any working day up to 3 months ahead. Minimum 3 working days lead time.
→Kerbside delivery only. Couriers deliver to your nearest accessible point. Please ensure help is available.
→Inspect before fitting. Check all products on delivery. Contact us within 48 hours of any damage.
→30-day returns. Return any unopened packs within 30 days. Opened packs cannot be returned.
→Restocking fee. Returns without a specific reason are subject to a 20% restocking fee.
→Get in touch. Email help@innovationflooringdirect.com for any questions.