Real wood, made safer
SaferWood is real wood, made safer. Using our proprietary Thermex-FR fire retardant and treatment process, we turn normal wood into SaferWood—wood that resists ignition, is allowed for use in the highest-risk wildfire environments, and preserves the natural beauty of wood.
Ignition-resistant
SaferWood meets the International Building Code (IBC) definition for fire-retardant-treated wood (FRTW) meaning it is significantly less combustible than regular, untreated wood. SaferWood limits flame spread, ember formation, and smoke development, making it suitable for exterior use in Wildland-Urban Interface (WUI) areas.
Permanent protection
SaferWood is made through a one-time pressure-impregnation process using our proprietary Thermex-FR fire retardant. This protection is permanent: Thermex-FR is bound to the cellular structure of the wood through the pressure-treatment process, meaning that it’ll never leach or weather away, no matter the application or climate.
Appearance-grade
Our treatment process does not affect the final appearance, grain, or texture of the wood, except for Thermex-FR giving SaferWood a slightly golden, honeyed hue. We guarantee a mar-free finish on the good face of the wood, so that its natural beauty may be showcased in any application.
Wood, wherever you want it
SaferWood may be used anywhere fire-retardant-treated wood (FRTW) or ignition-resistant material is allowed or required. This includes the highest-risk Wildland-Urban Interface (WUI) areas, like California and Colorado. SaferWood is compliant with the strictest codes in the U.S. and abroad.
The standard
SaferWood has been tested according to ASTM E2768 surface-burning following ASTM D2898 accelerated weathering. This testing sequence is designed to evaluate the combustibility of a material after years of climate exposure, and is used by national and state codes to determine whether a material can be considered FRTW and ignition-resistant.
The test
To earn the definition of ignition-resistant, a material must pass ASTM E2768 with a flame spread index (FSI) of 25 or less, a smoke development index (SDI) of 450 or less, and no evidence of progressive combustion. To qualify as FRTW, a material must meet the same standard, but have undergone ASTM D2898 accelerated weathering prior to ASTM E2768.
The result
SaferWood passes ASTM E2768 surface-burning following ASTM D2898 accelerated weathering with an FSI of ≤25, an SDI of ≤100, and no evidence of progressive combustion, making it compliant as FRTW and an ignition-resistant material ready for exterior use in WUI and high wildfire risk environments.
How to get SaferWood
SaferWood is sourced through our network of partners, clients, and distributors across the United States and Canada. Our partners provide provide the material while we provide the fire-retardant treatment. All SaferWood is treated at our facility in Ferndale, Washington, though some of our partners stock SaferWood. To get SaferWood and be connected with one of our partners, please contact us.

