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Fibreboard 5.5mm Underlay (10m2 Coverage)

Product Code: ACC003
  • £4.00 per m² £40.00 Per Pack
  • RRP £6.00 per m²
Want it by Tuesday 28th May? Order within 1 hours, 57 minutes and choose Next Working Day - Kerbside Delivery (Order Must be Placed by 2pm) at checkout.
Item in StockIn Stock | Usually dispatched within 24 hours
Want it by Tuesday 28th May? Order within 1 hours, 57 minutes and choose Next Working Day - Kerbside Delivery (Order Must be Placed by 2pm) at checkout.

Fibreboard 5.5mm Underlay 10m2
Thickness: 5.5mm
Concrete Subfloor: No
Moisture Barrier: No
Coverage: 10.03m2
Underfloor Heating: No
Tog Rating: 1.1


Fibreboard underlay is perfect for installation under your floor to help improve insulation, dampen sound, and to help level uneven subfloors  - though we’d always suggest that you make sure your subfloor is completely level before laying an underlay!

Fibreboard underlay is a premium natural insulating under floor board for use with all laminates and glue-less woods where a floating installation is required. It comes in "tiles" which cover an area of 10.03m2 per pack.

Each board is 5.5mm thick which helps with sound reduction, and this underlay is perfect where sound reduction is needed. For example, in rooms with high ceilings, or apartment buildings with neighbours underneath. You might also consider buying it as a Christmas present for your neighbours above, too!

This underlay shouldn’t be laid on concrete, as it doesn’t contain a moisture barrier. Concrete subfloors will generally leak moisture over time due to the nature of the material, and you’ll need a special underlay with a moisture barrier for a concrete subfloor.

For more information, check out our guide, Why You Need To Underlay Your Floor.


Review Summary - 4.9 out of 5 based on 14 ratings.
Sort reviews by:

Sorry don’t have a picture but these are so easy to use. Place down cut to size simple as that. Nice and thick cannot fault them.

March 16, 2019 |

Really happy with the purchase does the job great.

January 18, 2019 |

Great underlay easy to lay. The packs are much larger than in the shops great value for money. The image shows 1 pack in a 18ft long room

April 20, 2018 |

Looks a good product haven't used yet as decorating

March 28, 2018 |

March 9, 2018 |

Not yet laid but looks good for the job

February 7, 2018 |

Spot on from order to finished floor. Easy to order, and you are kept informed throughout the ordering and delivery process - Even the delivery man lets you know he's on his way and gives an approximate delivery time.

Great value underlay. Allows you to easily run speaker cables etc with a minimum of fuss

November 19, 2017 |

excellent product,covers a lot more than you think it will.Arrived in good condition on the day specified. All in all good product,excellent service

November 17, 2017 |

Easy to lay and makes a perfect surface on which to lay the laminates we used. Recommended.

October 12, 2017 |

Fibreboard 5.5mm Underlay (10m2 Coverage)

May 26, 2017 |

March 18, 2017 |

Good Product

I found this product easy to install and it help reduce sound levels. The service from this website was very good.

September 17, 2012 |


Really good quality product. It significantly reduced the noise produced from walking on the laminate.

September 17, 2012 |

Very impressed

Very impressed, installed under the laminate in the kids room upstairs. Noise level is reduced, very happy!

August 8, 2012 |

Delivery Information

Deliveries are made on Monday - Friday between 8am to 6:30pm (Saturday between 8am- 2pm).

On the day of delivery, United Pallet Network will off-load the pallet using a tail-lift and hand operated pallet trolley.  The driver will ensure that the pallet is left in a safe place on the kerb or driveway. Please ensure you make the necessary arrangements to transport the goods into the property. 

Beading orders will be delivered by DX Delivery.

99% of our orders are delivered in perfect condition but sometimes things can go wrong in transit.

You have 15 minutes to check your goods, if you do notice any type of damage please ensure you record this on the driver’s delivery docket. We cannot accept claims for damage unless it is recorded on the delivery docket. Please also take the time to review our T&C’s.

Damage to look out for is ripped packaging, corners of the boxes, product arriving wet, and impact damage.

When your order arrives, the name on the box might be different from what you have ordered. Our suppliers don’t like us selling their flooring at such low prices so we change the name.

If a delivery is refused for any reason other than damaged goods you will be liable for the full cost of delivery and return. Re-delivery charges are incurred for failed delivery attempts.