Fire Retardant-Treated Wood Products
From the member treaters of Western Wood Preservers Institute

Welcome to the Western Wood Preservers Institute's Fire Retardant-Treated Wood website. WWPI is a nonprofit trade association representing the producers of quality fire retardant-treated wood in western North America.

The fire retardant-treated wood products manufactured by WWPI member companies include sawn lumber, plywood and beams. These companies also produce pressure-treated preserved wood products, which are detailed in our sister website


What's New

Want to know more about fire retardant-treated lumber and plywood? Check out these resources:

Learn how fire retardant wood is made and see why it offers superior protection against fire.

See the code-compliant quality marks that provide key information about fire retardant-treated products.

Visit the Fire Resistant Wood Technical Library for up-to-date information and recommendations for fire retardant wood.

Looking for fire retardant treated wood? Check out the Sources Guide and download the listings for the WWPI Member companies supplying fire retardant lumber and plywood products.

Review the benefits of pressure treating for fire retardants compared to coatings and see why building codes recognize this treatment process.

Explore the extensive testing pressure treated fire retardants must pass to be officially recognized within the building codes.

Find out about all things related to preservative-treated wood products on the website.

Where to Buy FR Wood



There are many WWPI Member manufacturers who can provide the fire retardant wood products you need. Use the Fire Retardant Wood Sources Guide to find those treaters close to your location who offer quality fire retardant wood products.

The guide lists companies, plant locations, sales contact information and the type of treatments (interior and/or exterior) they offer.

Also, download the Sources Guide to find the quality fire retardant wood products available from the top treaters in the West.