Report
Wood preservation and wood products treatment training manual
Extension mimeo (Washington State University. Extension), 133E, Washington State University Extension
12/2025
DOI:
https://doi.org/10.7273/000007837
Abstract
Many standards and specifications exist to control the quality of treated wood and protect the purchaser. Since November 1986, federal regulations administered by the Environmental Protection Agency (EPA) have restricted the sale and use of certain preservatives to ensure that only properly trained applicators, or people under their direct supervision, have access to them. Wood pesticides (preservatives) extend the life of wood products by protecting them from damage by insects, fungi, marine borers, and weather. Preservatives are applied depending on how and where the wood products will be used, the expected conditions of exposure to wood-destroying agents, and the cost per year of service life. Crossties, poles, posts, and other wood products that contact the ground or are exposed to the weather must be protected with preservatives to ensure a reasonable service life. Other wood products not in contact with the ground may be treated as a precautionary measure even though they are not exposed to moisture and weather. Long-term tests and experience show the levels of protection needed for various wood products and uses. Federal and state specifications, the requirements of the American Wood Preservers Association, and building codes are the most relevant regulations.
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Details
- Title
- Wood preservation and wood products treatment training manual
- Creators
- Gary L. Thomasson (Author) - Washington State University, WSU ExtensionJoseph Capizzi (Author) - Oregon State UniversityFrank N. Dost (Author) - Oregon State UniversityJeffrey J. Morrell (Author) - Oregon State UniversityDonald J. Miller (Author) - Oregon State UniversityDownen Jocson (Editor) - Washington State University, Department of EntomologyAdrienne Burke (Editor) - Washington State University, Department of Crop and Soil SciencesMelissa Mayer (Editor) - Washington State UniversityWendy Sue Wheeler (Editor) - Washington State University, Department of Entomology
- Academic Unit
- Publications, WSU Extension
- Series
- Extension mimeo (Washington State University. Extension); 133E
- Publisher
- Washington State University Extension; Pullman, Washington
- Number of pages
- 16
- Identifiers
- 99901335499901842
- Language
- English
- Resource Type
- Report