About

Since 1971 The FLAMEPROOF COMPANIES have manufactured Fire Retardant and Preservative Treated Lumber & Plywood. What began as a small treatment facility in Chicago has now grown into a nationwide operation with additional manufacturing & distribution facilities in Wisconsin, Texas, and Virginia.

Today, The Flameproof Companies is a manufacturer of high-performance treated wood products that specializes in the production of treated lumber, plywood, OSB and engineered wood products featuring a range of superior chemistries including:

• D-Blaze Fire Retardant Treated Wood
• Wolman E MCA Preservative Treated Wood
• FX Lumber Guard XT Exterior Fire Retardant
• MagTechTM Fire Retardant OSB Sheathing
• Timbers: MCA Preservative Treated
• Engineered Lumber: I-Joist, LVL, Glulam
• Metal, Gypsum and Insulation Products
• Fire Retardant In-Wall Blocking

Certified treater of wood products.