WWPI Members

WWPI members are dedicated to providing quality products that meet all building code and treating standards while using EPA registered preservatives that are approved by the American Wood Protection Association (AWPA).

There are three levels of membership: Treater Members, Associate Members and Supporting Members. To learn more about each respective member, click on the link to view their website, where available.

Treater Members

Allweather Wood, Washougal, WA
AmeriTies West, LLC, The Dalles, OR
Bell Lumber & Pole Company, New Brighton, MN
Brisco Wood Preservers Ltd., Brisco, BC
Brooks Manufacturing Co., Bellingham, WA
California Cascade Industries, Sacramento, CA
Conrad Forest Products, North Bend, OR
Durawood (TrueGuard, LLC), Coos Bay, OR
Exterior Wood, Inc., Washougal, WA
Fontana Wood Preserving, Inc., Fontana, CA
Hughes Brothers, Inc., Seward, NB
J.H. Baxter & Co, San Mateo, CA
Koppers, Inc., Denver, CO
Marks-Miller Post & Pole, Inc, Clancy, MT
McFarland Cascade, Tacoma, WA
The Oeser Company, Bellingham, WA
Pacific States Treating, Weed, CA
Permapost Products, Hillsboro, OR
Royal Pacific Industries, McMinnville, OR
Stella-Jones, Inc., New Westminster, B.C.
Superior Wood Treating, Sumner, WA
Thunderbolt Wood Treating, Riverbank, CA
TrueGuard, Ukiah, CA
Utah Wood Preserving Company, Salt Lake City, UT
Western Wood Preserving Co., Sumner, WA
Western Wood Treating, Woodland, CA
Wheeler Lumber, LLC, Whitewood, SD

Associate Members

Bridgewell Resources, LLC, Tigard, OR
Chemonite Council, Atlanta, GA
Eco Chemical, Seattle, WA
KMG Chemicals, Houston, TX
Kop-Coat, Inc., Pittsburgh, PA
Koppers Performance Chemicals, Griffin, GA
Lonza Wood Protection, Smyrna, GA
Nisus Corporation, Rockford, TN
Ruetgers Canada, Inc., Hamilton, ONT
Safer Building Solutions, Clarksburg, CA
Troy Corporation, Florham Park, NJ
U.S. Borax (Rio Tinto Borates), Greenwood Village, CO
Viance, LLC, Charlotte, NC

Supporting Members

Alamon Utility Services, Kalispell, MT
American Wood Technology, LLC, Suwanee, GA
Ametek Process Instruments, Pittsburgh, PA
Analytical Laboratory & Consultants, Eugene, OR
AquAeTer, Centennial, CO
The Bayne Company, Spokane, WA
Bison Engineering, Helena, MT
Bode Inspection, Inc., Beaverton, OR
DB Manufacturing, Fife, WA
Enpurion, Tacoma, WA
EKI Environment & Water, Inc., Burlingame, CA
Genics, Inc., Acheson, AB
Integral Consulting, Louisville, CO
IWT, LLC, Vejle, Denmark
Leavitt's Freight Service, Inc., Springfield, OR
Marine Fenders International, Inc., Wilmington, CA
Maul Foster & Alongi, Vancouver, WA
Natural Wood Solutions, LLC, Mooreville, MS
Osmose Utilities Services, Inc., Peachtree City, GA
Poles, Inc., Manitou Springs, CO
Restorical Research, LLC, Mercer Island, WA
RJH Enterprises, Inc, Corvallis, OR
Sierra Pacific Industries, Anderson, CA
Stephen Smith Consulting, Helena, MT
Stoel Rives LLP, Portland, OR
TB Consulting, LLC, Grangeville, ID
Timber Products Inspection, Inc., Portland, OR
Western Wood Services - a div. of SPIB, Pensacola, FL
Western Wood Structures, Tualatin, OR
Wood Care Systems, Kirkland, WA