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Fire Retardant Plywood

Chemically treated plywood with improved fire retardant attributes.

Through Arch Timber Protection (a division of Lonza), we are able to offer timber impregnation treatment that can drastically increase the product’s performance against fire throughout the duration of its service life.

DRICON is a BBA certified treatment available in the UK for internal timber and plywood. A humidity-resistant chemical solution is used to impregnate the very fibers of the plywood, meaning the applied solution maintains its functionality against rising humidity. For more information on DRICON, please see below.

Products listed below are available from stock. Fire Retardant Treatment can be arranged and processed on a variety of plywood products following enquiry. 

Typical Applications
  • Veneering
  • Laminating
  • Joinery
  • Shopfitting
  • Furniture
  • Exhibitions
  • Stage sets
  • Laser cutting
  • Model making
  • Automotive Applications
Applicable Standards
  • EN ISO 11925 – Ignitability test.
  • BS EN 13501-1 – Single Burning Item Test.
  • BS EN 313 – Plywood classification & terminology.
  • BS EN 314 – Plywood bonding quality.
  • BS EN 635 – Plywood classification by surface appearance.
  • BS EN 636 – Plywood specification.
  • European Class B/C Fire Ratings

Our plywood boards for interior applications can be fire retardant treated with DRICON – a tried and tested impregnation treatment that provides a one-off assured surface spread of flame protection for the service life of the boards.

DRICON is a UK Wood Protection Association approved Humidity Resistant fire treatment and is the only BBA certified fire retardant treatment for timber and panel products. This unique accreditation has been in place for over 25 years.

DRICON is also classified as INT2 (Interior2), the highest fire protection classification for internal products. Treatments have been independently tested to meet either Euroclass B or C requirements of EN 13501-1.

Quick Reference Guide – Fire Ratings

A question we are frequently asked is which fire rated panel will provide 30 minute or 60 minute fire resistance. The answer of course is not straight forward and although fire rated panels can be used as part of a fire barrier system, such as partitions, the finished design requires additional independent testing to achieve such a rating.

Since the introduction of the Construction Products Regulation (CPR) Fire retardant panels are tested against EN13823:2002 (SBI or Single Burning Item Test) and EN11925 (Ignitability Test) and given a rating against their performance.

SBI is the key test and records parameters relating to the rate of fire growth, lateral flame spread, heat release and smoke emission.

There are seven Euroclass Classifications for fire performance of different construction materials ranging from A1 and A2 through to F. Classifications for wood based panel products such as Plywood, MDF and Chipboard include B, C, D and E. Euroclasses D and E relate to untreated material.

Performance Description
Fire Scenario
Heat Attack
Examples of Products
No contribution to fire
Fully developed fire in a room
At least 60kW/m2
Products of natural stone concrete, bricks, ceramic, glass, steel and many metallic products
No contribution to fire
Fully developed fire in a room
At least 60kW/m2
Products similar to those of class A1, including small amounts of organic compounds
Very limited contribution to fire
Single burning item in a room
40kW/m2 on a limited area
Gypsum boards with different (thin) surface linings. Fire retardant wood-based panel products
Limited contribution to fire
Single burning item in a room
40kW/m2 on a limited area
Phenolic foam, gypsum boards with different surface linings. Flame retardant wood-based panel products (thicker than in class B)
Acceptable contribution to fire
Single burning item in a room
40kW/m2 on a limited area
Wood-based panel products with thickness > about 10mm and density > about 400kg/m3 (depending on end use)
Acceptable contribution to fire
Small flame attack
Flame height 20mm
Low density fibreboard, plastic based insulation products
No performance requirements
Small flame attack
Flame height 20mm
Products not tested (no requirements)
Class C
2745mm x 1220mm
2440mm x 1220mm
Want to know more about Fire Retardant Plywood? Simply fill out our Quick enquiry form or call us on 01422 330 444