Welcome to

Flameproof Companies

Manufacturers of Quality Treated Wood Products and Distributors of Commercial Building Materials.

Flameproof Locations

Who are you?


Flameproof Companies 

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, 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: fire retardants, metal-based preservatives, non-intumescent coatings, & other unique chemistries.

Why Work With Us?

The FLAMEPROOF COMPANIES prides itself on our forward-thinking, market shaping, customer-centric approach that has afforded us the opportunity to provide a superior value to end-users, that truly is one-of-a-kind. Simply put, our customers benefit from working directly with a manufacturer who understands the overall market and the time-sensitive demands of today’s construction industry. With nationwide shipping, backed by a complete line of lumber and plywood ready for rapid shipment, we can deliver one piece – or thousands, with the highest degree of attention, and to precise customer specifications. We are also one of the nation’s largest manufacturers & distributors of FSC (LEED) products.  In addition to manufacturing & distributing treated wood products, we are distributors of Versaroc, Homasote, I joist, Metal studs and more. Our employees are knowledgeable, technically adept and highly motivated to assist with the successes of your company and projects, no matter the size. We recognize that when you win, we win too. As an innovator in the Treated Wood Products Industry, we welcome your business inquiries and look forward to serving your interests for decades to come.

Interested in our products & services?