Description. Founded in 1936, Roseburg Forest Products is a privately owned company and one of North America's leading producers of particleboard, medium density fiberboard and thermally fused laminates. Roseburg also manufactures softwood and hardwood plywood, lumber, LVL and I-joists. The company owns and sustainably manages more than 600,000 acres of timberland in Oregon, North Carolina and Virginia, as well as an export wood chip terminal fac...