Located in Sumner, Washington, Western Wood Preserving Co. has been a manufacturer of pressure treated wood products since 1971.  Our facility includes 12 acres of treatment, drying and storage areas, and produces top quality treated wood products for residential and commercial consumers in the wholesale market.

The Pacific Northwest is our home.  Strategically located in Western Washington, we have lumber supply resources available to us from all over the Pacific Northwest.  Located next to the ports of Tacoma and Seattle, we have easy access to the Alaskan, Hawaiian and Pacific Rim markets.

Corporate Office
1310 Zehnder Street
PO Box 1250
Sumner, WA  98390

M - F  8:00 am - 4:30 pm

Plant Address
1313 Zehnder Street
PO Box 1250
Sumner, WA  98390

M - F  7:30 am - 4:00 pm