D-Blaze | Treated Wood

Built-in Fire Protection

D-Blaze treated lumber and plywood is designed for interior wood framing and sheathing applications where fire retardant construction materials are specified or required by building code. D-Blaze is highly effective at slowing down the spread of flame and reducing smoke development as a result of fire, giving you and your family more time to escape.

D Blaze Multi Family Framing 1
One World Trade Center 4 Ek
Willis Tower, Chicago, built with D-Blaze FRTW
Dblaze Treated Wood
Chicago Navy Pier built with D-Blaze FRTW

35 Years of Proven Performance

  • D-Blaze®fire-retardant treated wood (FRTW) is highly effective at slowing down the spread of flame and smoke caused by fire, increasing evacuation time and potentially reducing damages and repair costs. D-Blaze FRTW effectively slows the combustion cycle of fire by forming a protective layer of char, hindering flame spread and smoke formation.

  • D-Blaze is recognized as a code compliant pressure-impregnated fire-retardant treatment under the International Building Code® (IBC®), International Residential Code® (IRC®) and the National Building Code of Canada® (NBC®) for lumber and plywood products used in fire-rated assemblies and interior applications where fire retardant construction materials are permitted and specified by the building codes.

    Tested and listed by Underwriters Laboratories® (UL® and ULC®), D-Blaze FRTW meets the requirements of construction materials as set forth in all North American building codes. During the code required 30-minute flame and smoke test; UL 723 (ASTM E84 extended to 30 minutes), D-Blaze FRTW shows no evidence of significant progressive combustion or smoke emissions.

    D-Blaze FRTW products are fire resistant, durable, non-hygroscopic, non-blooming, easy to handle, workable with common woodworking tools, and offers a lower in-place cost than materials classified as non-combustible. D-Blaze FRTW has been used in projects across North America, including the One World Trade Center in New York City, the Willis Tower; formerly the Sears Tower and the Navy Pier in Chicago.

    Backed by a 50-Year Limited Warranty, D-Blaze FRTW is protected against structural failure due to strength loss caused by high temperature and high humidity conditions. (See Warranty for details.)

Product Applications


  • Dblaze Roof

    Roof and Trusses - plywood sheathing, decks and rafters

  • Multifamily framing

    Walls - load bearing and partition, plywood sheathing and studs

  • D Blaze Multi Family Framing 1

    Flooring - subfloors, joists, plywood sheathing, studs and trusses

  • Interior wall framing

    Other Structural Uses - wood framing, stairways, steps, beams, blocking and paneling

The Qualities That Matter to You

Dblaze Roof

Built-in fire protection - D-Blaze treated lumber and plywood designed for interior applications where fire retardant construction materials are specified or required by building code.

Ul And Ulc Logos

D-Blaze FRTW meets or exceeds the testing guidelines for construction materials as established by Underwriters Laboratories UL Class A (Class 1) with FR-S Rating for Plywood and Lumber and Canada CAN/ULC S102 and S102.2.

Greenguard Ul2818 Gold Cmyk Green

UL GreenGuard Gold Certified for low chemical emissions UL 281, the first FRTW of its kind to earn Green Guard certification.

Multifamily framing

D-Blaze earned qualification for the Collaborative for High Performance Schools (CHPS) and the Leadership in Energy and Environmental Design (LEED) Building Rating System. No VOC's. No Formaldehyde.

House with roof framing

Backed by a 50-year limited warranty with 35 years of proven performance.