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 manufacturing & distribution facilities in Wisconsin, Texas and most recently, the Pacific Northwest. 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: fire retardants, metal & non-metal based preservatives, intumescent & non-intumescent coatings, water repellants, mold release agents & other unique chemistries.

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 manufacturing & distribution facilities in Wisconsin and Texas. We stock a complete line of preservative treated lumber and plywood. For those hard to find and special order items, you'll for sure be impressed with our quick turn time & service capabilities. MagTech Fire Retardant OSB Sheathing is the obvious choice for contractors wanting to meet strict building requirements with ease, and can be used in fire-rated wall applications, as well as for fire retardant structural sheathing on exterior and interior walls, pitched roofs, flat roof decks, and floors.

What's new?

Hancock School construction by Jade Carpentry - another project supplied in part by Chicago Flameproof!

Posted on Jan 22, 2021  •  Facebook

Chicago Flameproof is proud to have supplied flame retardant plywood and wood for the Hargrave Builders project at the Preserves at Addison.

Posted on Jan 18, 2021  •  Facebook

Happy New Year! Our facilities are closed today in observance of the holiday. Have a safe and happy holiday weekend!

Posted on Jan 01, 2021  •  Facebook

On behalf of the Flameproof family, we send best wishes for the holiday season, and for health and happiness throughout the coming year. Merry Christmas!

Posted on Dec 25, 2020  •  Facebook

From the Chicago Flameproof family to yours, have a safe and happy Thanksgiving!

Posted on Nov 26, 2020  •  Facebook

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