No other fire retardant product, treated or untreated, can match Dricon® fire retardant treated (FRT) wood’s long term track record for effectiveness. In fact, Dricon® offered superior performance in thousands of applications conducted under the most challenging conditions. Pressurized with an original, patented fire retardant, Dricon® remains stable in the highest temperature environments. And it’s the only FRT wood product on the market today that is backed by a 40-year warranty.

Wood treated with Dricon® reduces flamespread and smoke development and its ability to maintain its structural strength in a fire is enhanced. Although other fire retardant wood products and laminates are available, some suffer from heat degradation problems. Furthermore, laminates treated on only one side of the sheet do not offer thorough protection from heat spread and combustion.

Unlike similar products, Dricon® does not pick up excessive moisture, even at a relative humidity of 95%. Tests show that Dricon® is no more corrosive than untreated wood, even when the relative humidity reaches 100%.

Each piece of Dricon® is marked with an ink stamp or paper label bearing classification mark of Underwriters Laboratories, Inc., (UL). It shows that Dricon® has been kiln dried after treatment and qualifies as an Interior Type A, low hygroscopic product. Dricon® was the first product of its kind to be issued a national code compliance report for fire retardancy and structural durability. The use of Dricon® wood can reduce insurance premiums in many applications.

Dricon® provides greater design latitude than conventional noncombustible materials such as masonry or steel. Architects, engineers and contractors are putting Dricon® in use in:
 ●  Indoor construction staging, scaffold and workman’s shanties
 ●  Studs, wallplates and firestops
 ●  Roof systems including decks, purlins and joists
 ●  Air return plenum framing in HVAC systems
 ●  Elevator shafts
 ●  Interior siding and millwork areas where sprinkler systems cannon be installed
 ●  Anywhere other materials would permit a fire to ignite and spread

The chemicals used in Dricon® wood are of very low toxicity and will not harm anyone who works with it. Tests have shown that smoke from Dricon® is no more toxic than smoke from untreated wood. Naturally, normal safety precautions for working with any wood should be followed. This means gloves, dust masks, and eye protection. Ingestion tests have demonstrated that extreme amounts of wood would have to be ingested before chemical exposure becomes significant.

A light sanding and thorough wiping should be performed prior to the application of any finish. Stains, sealers, varnishes, and paints can be used on Dricon®. Paints can be either water based or oil based; stains should be solvent-based to avoid possible surface crystallization of the fire retardant chemical. Dricon® does not adversely affect the performance of nonstructural constructive adhesives, mastics or contact cements. Using carbide tipped saw blades and hot dipped galvanized steel fasteners is recommended.

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4 to 5 ply

#1, #2/BTR

Code Reference:    

UBC Sec. CHP #1811
CABO R 802.1.1 R 803.2.1.2

Classified Interior Type A/KDAT
AWPA Recognition of Dricon® FRT Wood

Dricon® FR chemicals and Dricon® FRT wood are acceptable under AWPA's P & U standards. Dricon FR chemical meets the formulation listed as "FR-1" in standard P17 for fire retardant formulations.
Dricon FR chemical and Dricon FRT wood are also recognized as an effective preservative system for above-ground, weather-protected applications. The fire retardant qualifies as an inorganic borate preservative (SBX), meeting the requirements for AWPA standard P5, Waterborne Preservatives (section 9). Dricon FRT wood can also be used in categories UC1 and UC2.

Arch Wood Protection and Arch Treatment Technologies produce wood preservatives and
additives that enhance the qualities of wood by pressure treatment processing.
Visit for more information.

Download the Dricon® Fire Retardant Treated Wood Warranty Agreement (197 KB)

Download the MSDS for Dricon® Fire Retardant Treated Wood (41 KB)


•  Overview
•  Component Additive Method (CAM) Guide
•  Code Report (ESR-1626)
•  ICC Building Code References
•  Product Demonstration Video
•  Fire Performance Ratings

Dricon® FRT Wood: How It Works

Introduced in 1981, Dricon® FRT wood is a development of Arch Wood Protection intended for interior, weather-protected applications. Since that introduction, Dricon® FRT wood has proven itself in countless structures of many different types. For how it works, click here

Dricon® FRT Wood: Residential Use

Fire retardant treated wood has been used for decades in institutional buildings. As more homes are built near forests and wildlands, the threat of fire is increasing to residential property and inhabitants. Dricon® FRT wood provides an extra measure of safety for homeowners and may even increase escape time in the event of a fire. Learn more about residential use.

Dricon® FRT Wood: Why Choose Preserved Wood?

Dricon® FRT wood provides greater design latitude for the architect, engineer and contractor, and removes many barriers associated with conventional noncombustible materials such as masonry and steel. The use of Dricon® FRT wood can result in greater safety and offers a less costly alternative to the use of sprinklers or parapet walls. It offers all of the environmental and other advantages of wood. Plus, it is backed by three separate warranties.

Dricon® FRT Wood: AWPA Standards

Each batch of Dricon® FRT chemical is inspected and tested to be sure it adheres to the specifications of Arch Wood Protection and Underwriters Laboratories. The Dricon® FRT chemical meets current AWPA standards as a fire retardant and as a preservative in above-ground, weather-protected uses. Learn more about fire performance and other properties.

Dricon® FRT Wood: Product Properties

Various species of Dricon® FRT wood have values of 25 or less for flamespread and smoke development in a 1--minute tunnel test, plus no evidence of progressive burning when the test is extended to 30 minutes.

Learn more about fire performance and other properties.

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