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Wood Fibre Fillerboard Sheet 12mm x 1210mm x 2133mm

Wood Fibre Fillerboard Sheet 12mm x 1210mm x 2133mm
Wood Fibre Fillerboard Sheet 12mm x 1210mm x 2133mm
  • 12mm Wood Fibre Fillerboard Sheet - 1210mm x 2133mm - 2.58m2
  • Multi purpose bituminous wood fibre based filler boards
  • Density of 230kg/m3 - highly resistant to moisture penetration
  • Expansion joint filler for concrete slab and wall construction
  • Relieve stress and reduce the risk of cracking or heave in a slab
Estimated delivery:
In Stock
£ 41.47
Ex VAT: £ 34.56
  • Brand: WHITEROCK® Construction Products
  • Model: 12mm Wood Fibre Fillerboard
  • Weight: 7.50kg
  • Dimensions: 2,133mm x 1,210mm x 12mm
  • SKU: WFB12
  • Product code: P1-2730
  • MPN: 12mm Wood Fibre Fillerboard

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12mm Wood Fibre Fillerboard Sheets are multi purpose bituminous wood fibre based filler boards with 230kg density/m3 used as an expansion joint filler for concrete slab and wall construction to reduce the risk of cracking.

Fillerboard is an ideal solution for use in expansion joints for concrete in such applications as roads, airport runways, pedestrian areas, floors, concrete roofs, external walls, cladding and slab pavement construction.

Wood Fibre Filler Board Sheet is a 12mm thick, 2133mm long by 1210mm wide fillerboard that is highly resistant to moisture penetration and ice formation in joints and should be protected by a fuel resistant sealant.

Fillerboard joints can be sealed using most cold applied polymeric sealants, but where liquid hydrocarbons such as shuttering oil, petrol, diesel fuels and other solvents may be present.

The installation of an expansion joint, such as Fillerboard Sheet in concrete, is required to relieve stress and thereby reduce the risk of cracking or heave in a slab.

It is a characteristic of concrete that it will expand or contract slightly relative to ambient temperatures.

In simple terms, concrete will expand in the summer and slightly contract in the winter.

Filler-board is lightweight and can be easily cut on site.




Thickness: 12mm

Width: 1210mm 

Length: 2133mm

Board Coverage: 2.58m2

Density: 220-300 kg/m3

Thermal conductivity: 0.052 W/mK

Fire Reaction: Class E


Wood Fibre Fillerboard Features:

 · Reduce the risk of heave in a slab.

 · Highly resistant to moisture penetration.

 · Reduce the risk of cracking.

 · Bitumen impregnated fibreboard.

 · Resistant to dry, wet rot and fungus attack.

 · Ecologically friendly.

 · Low embodied energy.

 · Lightweight.

 · Can be easily cut on site.

 · Wide range of sizes.

 · Low cost, permanent solution.

 · Ideal general purpose expansion joint filler.

 · Manufactured to BS[EN]13986:2004 +A1:2015.

 · Manufacturing certified to ISO 9001:2015.

 · Available nationwide on rapid delivery.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet

Board covarage 2.58 m2
Colour Light brown
Density 220-300kg/m3
Length 2133mm
Material Wood fibre, Bitumen, Water Repellent, Paraffin
Profile Expansion joints for concrete
Size 12mm x 1210mm x 2133mm
Storage Store in a dry location
Thermal Conductivity 0.052W/mK
Thickness 12mm
Water Vapour Resistivity 20–40 MNs/g
Weight/m2 2.88kg
Width 1210mm 
Bending Strength 1.0–2.0 N/mm2
Fire Classification Class E
Coverage 2.58m2 per board
Finish Dry to the touch
Sound insulation reduction Approx. 40 dB
Applications General purpose expansion joint filler
Fixing method Concrete expansion movement joints
Features Multi purpose bituminous wood fibre based filler board
Manufacturer Euro Accessories® Fillerboard®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
Wood Fibre Fillerboard Sheet 12mm x 1210mm x 2133mm
Wood Fibre Fillerboard Sheet 12mm x 1210mm x 2133mm
£ 41.47