Chicago Flameproof (866) 884-7591

Wisconsin Flameproof (866) 884-7593

North Texas Flameproof (866) 884-7594

Exterior Grade Fire Treated Lumber

Flameproof Companies is the company of choice for exterior grade fire treated lumber. Exterior lumber is generally used for specifications of a building that experience a high exposure to the elements or have a lot of exposure to high humidity. These materials burn more slowly than untreated wood, giving occupants of the building more time to safely evacuate which promotes safety and can ultimately save lives.

Flameproof Companies’ exterior fire retardant wood products are used in a wide variety of applications, including in the construction of siding, balconies, stairs, and exterior decks. Our exterior wood products have a clear finish, which can be painted with a latex-based paint or stained with a water-based stain.

Flameproof Companies has convenient locations throughout the nation. We are currently located in Illinois, Texas, and Wisconsin. Our exterior wood products are manufactured at out Chicagoland treating facility, but are available for immediate shipment for orders of any size. We offer onsite product delivery to locations throughout the nation, making it easy for clients throughout the United States to obtain safe building materials.

For more information on Flameproof Companies’ exterior grade fire treated lumber or to request a quote, please contact us at (866) 884-7591.

Fire Treated

Wood graphicWe stock a complete line of lumber and plywood. We provide quick turn around on special order treated items.

Green Products

  FSC® Certified lumber and Plywood in Treated and untreated for all of your LEED projects.

Building Products


We specialize in non-combustible material and hard-to-find commercial industry items.

Chicago Flameproof

1200 South Lake Street
Montgomery, IL 60538
phone 866-884-7591
fax 630-896-4773

North Texas Flameproof & Wood Specialties Corp

4215 Chickasaw St.
Fort Worth, TX 76119
phone 866-884-7594
fax 817-534-9807

Wisconsin Flameproof

8530 West Calumet Rd
Milwaukee, WI 53213
phone 866-884-7593
fax 414-365-3674