General Information
Sources of Supply
Most treated wood is distributed to the consumer through the Building Supply market. The following information identifies treaters for wholesale quantities and industrial applications. **Click on any link below to view, then click the back arrow on the upper left hand corner of the viewed page to return to this page.
Western Manufacturers Sources of Supply for Quality Pressure Treated Preservative and Fire Retardant Treated Wood Products (July 2012)
How to Specify and Use Pressure Treated Wood
Specification Guides
Specification Guide for Pressure Treated Wood (January 2012)
Treated Wood News - How to Specify Treated Wood with the AWPA Use Category System (UCS) (April 2012)
The Western Wood Preservers Institute provides outreach presentations to Architects, Engineers, Building Inspectors, government officials, and other organizations. WWPI offers AIA accredited Learning Units for these courses. Contact us to set up a presentation with your chapter or firm.
Treated Wood & Design: Architects will understand treated woods ability to prevent decay in moist applications and when and where they should or are required to use treated wood. Also options for treated wood in panels, lumber, posts, round wood and beams. Uses such as permanent wood foundations, exterior non-ground contact, ground contact and interior.
Treated Wood & Users: These sessions address the code requirements for fasteners and connectors in contact with treated wood. Additionally it covers code applications that require the use of treated wood, treated wood standards and specifications, quality control, safe handling and disposal concerns.
Treated Wood & The Building Codes: These sessions discuss pressure-treated wood technical characteristics and building code related applications. Emphasis is placed on the proper use of preserved wood & labeling required by the Residential Building Code. The presentation addresses many current issues that concern treated wood in commercial and residential construction and remodeling along with landscape and exterior living spaces. Fire retardant applications are also discussed.
For an interactive version, please use this link: HTML5APP
Treated Wood and the Building Codes
Preservative Treated Wood and the 2009 International Building Code
Preservative Treated Wood and the 2010 California Building Code
Fire Retardant Treated Wood and the 2009 International Building Code
Fire Retardant Treated Wood and the 2010 California Building Code
Life Cycle Assessment of Preservative Wood
Life Cycle Assessment of ACQ-Treated Lumber With Comparison to Wood Plastic CompositeDecking (Abstract): Journal of Cleaner Production, December 13, 2010
Life Cycle Assessment of Borate-Treated Lumber With Comparison to Galvanized Steel Fraiing (Abstract): Journal of Cleaner Production, December 14, 2010
Life Cycle Assessment of CCA-Treated Marine Pilings (Abstract): Journal of Marine Environment Engineering, Volume 9 Number 3, 2012
Carbon Impacts of Wood Products - Rick Bergman, Forest Products Laboratory - Mauree Puettmann, WoodLife Environmental Consultant - Adam Taylor, University of Tennessee
Life Cycle Assessment of CCA-Treated Wood Highway Guard Rail Posts in the US with comparisons to Galvanized Steel Guard Rail Posts: Scientific Research Open Access - January 2013
LCA CCA Guardrail Draft Summary Prepared by AquAeTer for the Treated Wood Council (2-7-13)
Quality Assurance - Third Party Inspection
To make sure your treated wood used in structural application was treated in accordance with national standards look for the information on the stamp or
end tag and the CheckMark with the ALSC accredited agency Mark.
How to Check for Quality - Reading the Stamp or Tag
ALSC Accredited Agencies
Safe Use Information
The preservatives used in treating wood are closely reviewed by the U.S. Environ-
mental Protection Agency and the Canadian Government to be sure they are safe
for people and the environment. The following material should help address your concerns. Always follow the guidance in the Consumer Information Sheets or
Consumer Safety Information Sheets.
Wood Preservative Science Council (Web-link)
EPA Pesticides: Reregistration and Other Related Information (Web-link)
EPA Supplemental Guidance on Interpretation of Revised CCA Wood Preservative Label
Penta Label Training (Power point presentation)
EPA Approved Consumer Information Sheets and Consumer Safety Information Sheets:
*For Preservative Specific information links, please go to our Links page.
What Should You Know About CCA?
Examples of products that may be treated with CCA
EPA Studies - CCA Sealant
Coatings & Sealants
WWPI Newsletter - Summer 2003
Coating Research - Department of Agriculture Forest Products Laboratory
Water Repellents for Treated Wood - Department of Agriculture Forest Products Laboratory
Treated Wood Newsletter
Summer 2002 - Use Categories
Treated Wood Helps ODOT Change Lanes on I-5
Research Shows Treated Wood Can Minimize Costly Moisture Damage In Homes
Consumer Alerts
Cherry Tone Timbers
Deck Safety
Treated To Refusal
Pole Barn
Translated Information on Pressure Treated Wood
Wood that Works, Wood that Lasts: Pressure Treated Wood from the Western USA
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