Wally Stevenson, Frank Daubenspeck, and Bruce Stevenson founded SDS Lumber Company in 1946, and Stevenson Land Company in 1990. SDS Lumber Company Manufactures Lumber, Plywood, Power and Pulp for a variety of markets. Stevenson Land Company is focused on managing approximately 70,000 acres of timberland in the mid-Columbia gorge. These two companies work in partnership to grow high-quality timber and manufacture high-quality lumber products. SDS Lumber Company’s mill site is fully integrated including full maintenance, engineering and construction capability. This structure provides constant innovation and improvement to our manufacturing processes keeping them efficient and productive in increasingly challenging markets.