FR Draft

Fire Retardant Plywood

Fire Rated Plywood to Euroclass B & Euroclass C

Approved suppliers of London Underground spec plywood - Transport for London Approved Plywood
Contact us for a quote on 01992 410333
As importers, we are set up to deal in commercial volumes to companies


We are suppliers of plywood panels with a range of flame retardant treatments and specs.
Burnblock: a non invasive pre-manufacture treatment. Veneers are treated before plywood is pressed and produced.
Osmose: a vacuum impregnation treatment (with or without kiln drying)

Specialised Panel Products Ltd. is an approved supplier to Transport for London (Product Register 2061)
The products we provide meet all of their required standards (Product Registration Certificate 1327).
Treated panels can also be supplied to a London Underground Approved Specification.

Call to discuss any panels for Transport for London and the London Underground. We can help complete the required paperwork and provide the correct certificates.
London Underground Approved Plywood
TFL Approved Plywood

Flame Retardant Plywood Distributors
  • Euroclass B
  • Euroclass C
  • Transport for London Approved Plywood
  • Intumescent Lacquered Plywood
  • Intumescent Painted Plywood

  • FR Birch Plywood
  • FR Pine Plywood
  • FR Timber & Cladding
  • FR Plywood Wall Panels
  • FR Lacquer
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Burnblock FR Plywood
SPP are stockists and distributors of BURNBLOCK Fire Rated Plywood

Burnblock is a non-toxic, water-based product that effectively blocks the supply of oxygen in the fire-threatened material. In this way Burnblock halts the burning process, just as it can counteract the ignition of treated plywood and timber. Burnblock-treated plywood is approved to the highest classification according to the Euroclass system for building products, making it the perfect solution for most building projects.

Burnblock-treated materials can be used for exterior cladding, wood constructions in multi-store buildings, fitting solutions, interior wall and floor constructions.

Why Choose Burnblock

Pre-manufacture Treatment
  • Not a surface coating or post-manufacture impregnantion treatment
  • Wood veneers are treated before being dried, bonded and pressed into plywood
  • Ensures complete FR properties throughout 100% of the panel
  • Sanding, drilling or routing does not reduce fire retardancy.  Impregnated panels should only be sanded to 0.2mm
  • No need to treat cut edges
  • Flat and dimensionally stable panels - ideal for laminating
  • No effervesence of salt or chemical residue on the surface
  • No border residue of liquid
  • No stick marks - ideal for decorative panels, use both sides
  • No kiln degradation (plugs on BB grade may fail and small knots may open on kilned panels)
  • No need to over order: our specifiers guide does not reccommend a 10% increase in order volume
Borate Free
  • Traditionally, borates are used in fire rated timber and plywood
  • Sodium perborate is on the REACH candidate list of substances for very high concern
  • Sodium perborate meets the criteria to be classified as toxic for reproduction. Read the ECHA support document here
  • Burnblock is borate free
Non-Toxic
  • No ingredient of Burnblock is on the REACH list or REACH candidate list
  • 100% Organic. In its liquid form, bio-degrades in 14 days
  • Non-harmful and non-hazardous. 100% food grade ingredients
  • Waste Management - safe disposal, treat as normal plywood
  • Handling - no addional masks or gloves
  • No additional cost implications for storage, handling & disposal

CE Marked Structural

  • Certified structural and CE stamped at original point of manufacture
  • The panel is not modified in anyway after CE certification

Resistance & Reaction Certified

  • Tested and certified for both resistance and reaction to fire (K1 and K2 test)


Current BURNBLOCK Fire Rated Birch Plywood Certification:
    EN 13501-1 Class B – s1, d0 K1 K2 10
    EN 14135 Resistant’s to Fire K1 K2 K10
    EN 45545 – 2 R10, HL1/HL2/HL3 Hazard Level Flooring
    EN 45545 – 2 R1, HL1 / HL2 Hazard Level Vertical Surfaces
    ISO 5659 – 2 Smoke Generation
    ISO 9239 – 1 Radiant Heat
    BS 476 Part 6 1989 + A1 209 (Fire Propagation)
    BS 476 Part 7 1997 (Surface Spread of Flame)
    BS 6853 Annex 3.2 1999 + Amd 1 (Toxic Fume)
    BS 6853 Annex D.8.4 1999 + Amd 1 (Smoke Density Panels)
    BS 6853 Annex D.8.4 1999 + Amd 1 (Smoke Density Flooring)

Veneered Fire Rated Plywood
We can offer veneered birch plywood to Euroclass B in the following veneers:
Oak - Ash - Maple - Cherry - Walnut - Birch

Panels can also be lacquered and retain the class B certification
Every component is FR rated: plywood > veneer > lacquer. The fire rating is maintained throughout, even if cut, drilled or damaged.
We also offer surface treatments or lacquers for decorative applications, such as acoustic panels and internal cladding.

Stock Items:
12mm, 15mm and 18mm 2440 x 1220 plywood Euroclass B and C (class 0 and class 1)

Our flame retardant boards are suitable for use in the construction industry. The fire performance required for all materials
used in buildings (which includes timber, plywood and wood based panels) is stated in Document B of the UK Building regulations.

Walls and ceilings require class 1 surface spread of flame in accordance with BS476: Part 7 or Euroclass C in accordance with
BS EN 13501-1:2002. Higher risk areas such as escape routes and staircases require class 0 surface spread of flame in accordance
with BS476: parts 6 & 7 or Euroclass B in accordance with BSEN13501-1: 2002.

Under the Construction Products Directive, there is a desire for European harmonisation of standards for fire retardant treatment
of timber. These are known as Euroclass B and Euroclass C.  In order to meet Euroclass B or Euroclass C specifications, timber
or plywood is tested to EN ISO 11925 (ignitability test) and BS EN 13823: 2002 (SBI or Single Burning Item Test). The SBI test
records parameters relating to the rate of fire growth, lateral flame spread and total heat release.  

Euroclass classifications are in accordance with BS EN 13501-1 (Fire classification of construction products and building elements)
The thresholds for compliance are higher for Euro class B than for Euro class C. Therefore if products conform to a Euro class B
they will also conform to a Euro class C, by definition.

In England and Wales, the fire requirements for buildings are dealt with by approved document part B to the Building regulations –
Class 0 and Class 1.  Euroclass B transposes to Class 0 and Euroclass C transposes to Class 1.
Further Information

What is Fire Retardant (FR) Plywood and Timber?
FR plywood and timber is material that has been treated to slow the spread of fire propogation and prevent ignition. The spread of flame is measured against a known standard of ENXXX

Why is FR material specified?
Increases the available time to safely evacuate a burning building

Reduces the rate of fire spread

Reduces smoke
By using FR Plywood or FR Timber you are using material that has passed and been approved to a measured standard as outlined in the Building Regulations. Treated material behaves and reacts to fire in a known and quantifiable way.

Class B or Class 0 ?
Class 1 and 0 were British standards BS476-7 which had started to be phased out in 2008 and completed by 2013. The standards were replaced by a harmonised European Standard. Document B refers to this harmonisation in section ???

Document B
The Buildings Regulations 2000 – Fire Safety – Approved Document B
Volume 1 - Dwelling Houses.   Volume 2 - Buildings other than Dwelling Houses.
This is a government document that specifies building regulations concerning fire. Public and private buildings 3m or 4m high.
This document outlines how to build a structure to achieve building “sign-off” from the building inspector. A Fire Officer is also involved.

The Architect and Structural Engineer will refer to Document B.
External Link to Document B PDF

Resistance /  Reaction to Fire
Resistance is measured in time (e.g. a 30 minute fire door) and usually relates to a composite, an assembled product or a constructed setup.
Reaction usually relates to individual material components, such as timber and plywood, where they are sold with a known and measured reaction to fire.
These are two different tests. Burnblock plywood is certified for both reaction and resistance to fire (K1 and K2 test)

CE Mark (Conformité Européenne)
The CE mark indicates that a product meets the requirements of the applicable EC directives and is consistent with its Declaration of Performance (DoP) as made by the manufacturer. This must be done before a product is placed on the market.



Wood Protection Association

Members of the Wood Protection Association
www.wood-protection.org

Included a list of potential uses - such as crash decks
Contact us for a quote
As importers, we are set up to deal in commercial volumes to companies
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