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Quick Info on WWPI


This site is maintained by Western Wood Preservers Institute in Vancouver, Wash. For more than six decades, WWPI has represented the interests of the preserved wood manufacturers and is dedicated to sustaining a viable western North America preserved wood industry.

Please review the Member section for a list of companies supporting the programs and activities of WWPI.

Our offices are located in east Vancouver, Wash. You can reach us by phone or by filling out the form below.

  • Address: 12503 SE Mill Plain Blvd., Ste. 205, Vancouver, WA 98684
  • Phone: (360) 693-9958

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The Western Wood Preservers Institute believes the information contained on this website and the website, also managed by WWPI, to be based on up-to-date scientific and economic information and is intended for general informational purposes. In furnishing this information, the Institute makes no warranty or representation, either expressed or implied, as to the reliability or accuracy of such information; nor does the Institute assume any liability resulting from use of or reliance upon the information by any party. These websites should also not be construed as a specific endorsement or warranty, direct or implied, of treated wood products or preservatives, in terms of performance, environmental impact or safety. The information contained herein should not be construed as a recommendation to violate any federal, provincial, state or municipal law, rule or regulation, and any party using or producing pressure treated wood products should review all such laws, rules or regulations prior to using or producing preservative treated wood products.