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FirePRO® brand fire retardant treated wood (FRTW) is lumber and plywood pressure impregnated with FirePRO Interior Type A High Temperature (HT) fire retardant chemicals. FirePRO® brand fire retardant is a patented formulation based on proprietary Osmose technology.

The Benefits of FirePRO® Treated Wood

FirePRO® End Uses

FirePRO® brand fire retardant treated lumber is typically permitted for interior, above ground applications such as: roof systems, studs, flooring, joists, sill plates, (when not in direct contact with the ground) blocking and furring, and other interior applications. The specifier and/or end user is responsible to review the test data on FirePRO® brand fire retardant treated wood to determine if it is acceptable for the intended end use.


Download the FirePro® SDS.

For more information on FirePRO® treated wood products please visit Koppers Performance Chemicals.