— The Standard Since '91
We Treat Lumber.
We Deliver Certainty.
Fire-retardant and preservative treated wood, backed by decades of expertise, direct-line service, and a four-facility network built to keep your project moving.
DELIVERED WITH PRECISION. ON SPEC. ON SCHEDULE. FULLY COMPLIANT.
Fast response. No call centers.
04
Facilities · IL / WI / TX / VA
30+
YEARS TREATING WOOD
50yr
D-BLAZE® LIMITED WARRANTY
FSC®
Certified Chain of Custody
The High-Accountability Alternative.
— Why Flameproof
We don't just sell fire-treated materials. We sell certainty. Three things separate us from commodity suppliers and the wait-and-see status quo.
01 · Authority
Legacy & Compliance
Expertise, proven over decades
Founded in 1991, we've worked through decades of evolving fire safety standards, building codes, and regulatory shifts. We understand specifications, documentation, and compliance from the start of the project through inspection, because we've been doing it the whole time.
02 · Accountability
Direct Access
No queues. No call centers.
You work directly with experienced team members accountable for your project, not automated systems or ticket queues. Whether it's reviewing specs, sourcing materials, or responding to a schedule change, our team is accessible and responsive.
03 · Project Speed
Supply Reliability
Capacity that keeps you moving
In a market shaped by mill closures and supply disruptions, dependable capacity is critical. Our four manufacturing and distribution facilities let us produce and supply with competitive lead times, so treated wood delays don't ripple across your timeline.
About Flameproof Companies
Since 1991, Flameproof Companies has been manufacturing fire retardant and preservative treated wood products built to perform when it matters most. What started as a small treatment facility in Chicago has grown into a nationwide operation, with manufacturing and distribution facilities in Wisconsin, Texas, and Virginia.
Today, The Flameproof Companies specializes in high-performance treated lumber, plywood, OSB, and engineered wood products—delivering reliable solutions for demanding commercial, industrial, and code-driven construction projects across the country.
Treated For The Job It's Specified For.
— Product Lines
From code-driven fire ratings to whole-house mold and termite protection to exterior ground-contact durability. One supplier, full documentation.
FIRE RETARDANT . INTERIOR
D-BLAZE® FRTW
Interior FRTW lumber and plywood, UL-classified Class A (FR-S). IBC/IRC compliant, GREENGUARD Gold, ICC-ES ESR-2645. Flame spread and smoke index of 25 or less. 50-year limited warranty.
MOLD . DECAY . TERMITE
FRAMEGUARD®
Whole-house protection for trusses, framing, OSB, and SIPs. EPA registered actives, 0 mold rating (ASTM D 3273), Formosan termite resistance. 20-year limited warranty.
EXTERIOR . GROUND CONTACT
WOLMAN® E (MCA-C)
Micronized Copper Azole Type C for decks, sill plates, and structural members. Above ground, ground contact, and freshwater immersion. AWPA standardized, ICC-ES ESR-1721.
FSC® Certified Chain of Custody.
— Responsible Sourcing
For projects with sustainability requirements or green building targets, we supply FSC-certified treated wood backed by a Single Chain of Custody certification, verified by Preferred by Nature and valid through August 2027.
The right documentation, ready when the spec calls for it. FSC claims are stated on sales and delivery documents so your certified materials are covered from order to jobsite.
Fire Retardant & Preservative Treated Lumber
Lumber
FSC Mix Credit
Treated Plywood
Plywood
Four Facilities. One Reason: Speed.
— Project Speed
A regional production and distribution footprint means we can produce and supply treated wood without unnecessary delays, north to south, coast to interior.
Forward pricing, real answers. Regional inventory depth means we can tell you what's available and what it costs now, not after a callback. The number you quote is the number you build with.
You Reach Someone WhoKnows The Product.
No ticket queues. No call center. No waiting on a callback from a rep who has to check with someone else. You work directly with experienced people accountable for your project.
Spec questions?
Full spec sheets, SDS documentation, and 3-part specifications available on request.
Schedule changed?
Tell us what you need on site and when. We'll tell you what's possible, today.
Specified Right. Documented From The Start.
— Compliance & Documentation
Inspection failures create real financial and scheduling risk. We support the spec process so the specified materials meet requirements, from submittal through inspection.
Lock In Your Pricing. Protect Your Timeline.
Set the standard for your next project. Get a quote from a team that can actually make the call.
Fast response. No call centers.