Chicago Flameproof (866) 884-7591

Wisconsin Flameproof (866) 884-7593

North Texas Flameproof (866) 884-7594


We manufacture and stock a complete inventory of Boards, Lumber, Plywood and Heavy Timbers.  We stock Heavy Timbers up to 12” x 12” x 24’.  We can quickly turn around hard to find Non stock ACQ® treated items.

Preserve® is treated with ACQ®, a new generation copper plus quat preservative system that provides long-term protection from rot, decay and termites for a wide variety of residential, commercial and industrial building applications.

Product Features

  • Protected with ACQ®, a new generation wood preservative
  • Does not contain arsenic or chromium
  • Provides long term protection from rot, decay and termite attack
  • For use in above ground, ground contact and fresh water immersion applications
  • Can be used in residential, commercial and industrial applications
  • Offers a wider selection of timber species
  • Easily painted or stained
  • Quality control ensured by independent third-party inspection
  • Preserve ACQ TreatedFeatures a lifetime limited warranty
  • ACQ® treated wood scraps and cut offs should be disposed of in a non-hazardous material lined landfill in accordance with local, state and federal regulations.
  • Preserve® is also available with built-in water repellent (Preserve Plus®)

Painting and Staining or Natural Weathering

Preserve® can be painted or stained to match any outdoor color scheme. High quality oil and latex-based paints and stains are recommended. Water repellent coatings can be applied to improve the weathering performance. Left uncoated or with clear water repellent coatings, Preserve® will initially weather to a natural brown color, eventually turning gray following long-term exposure to the sun.

ACQ Preserve It is important to ensure that the wood is dry and free from surface deposits prior to applying any coating.

Nails, Fasteners and Fittings

Hot-dipped galvanized or stainless steel fasteners and fittings are acceptable for use with ACQ® treated wood. Direct contact of Preserve® treated wood with aluminum fasteners and fittings is not recommended.

Preserve Logo

View the Preserve® Fastener Information Sheet.

Preserve® Treated Lumber and Plywood Specifications, Approvals, Registrations and Awards

View the Preserve® product specification
View the Preserve® Treated Wood Material Safety Data Sheet

  • NER 643Green Timbers
  • Standardized by the American Wood-Preservers’ Association (AWPA C1, AWPA C2, AWPA C4, AWPA C5, AWPA C9, AWPA C15, AWPA C17, AWPA C22, AWPA P5)
  • Preservative components registered with the United States Environmental Protection Agency
  • Australian Standard AS-1604 1997
  • AQIS – Australian Quarantine Service
  • JWPA Japanese Standards
  • CSA 0.80 Canadian Standard Association
  • NWPC – Nordic Wood Preservation Council
  • Approved in Germany, Holland, Denmark, Sweden and Spain
  • Winner of the US EPA Presidential Green Chemistry Award

Preserve® Recommended Retentions for Various Applications

Application – Retention (lbs/CuFt) – Uses:

  • Above Ground – 0.25 – Decking, fence boards, hand rails, deck supports
  • Ground Contact Fresh Water – 0.40 – Fence posts, landscaping, piers, docks, etc.
  • Permanent Wood Foundations – 0.60 – Wood foundations, crawl spaces
  • Poles – 0.60 – Building, transmission and distribution poles

Fire Treated

Wood graphicWe stock a complete line of lumber and plywood. We provide quick turn around on special order treated items.

Green Products

  FSC® Certified lumber and Plywood in Treated and untreated for all of your LEED projects.

Building Products


We specialize in non-combustible material and hard-to-find commercial industry items.

Chicago Flameproof

1200 South Lake Street
Montgomery, IL 60538
phone 866-884-7591
fax 630-896-4773

North Texas Flameproof & Wood Specialties Corp

4215 Chickasaw St.
Fort Worth, TX 76119
phone 866-884-7594
fax 817-534-9807

Wisconsin Flameproof

8530 West Calumet Rd
Milwaukee, WI 53213
phone 866-884-7593
fax 414-365-3674