the sawn product from a tree —synonym sawnwood —note dimension lumber is timber cut to specific widths, thicknesses, and lengths; hardwood dimension lumber is cut to the approximate sizes needed in the manufacture of furniture or other products; softwood dimension lumber consisists of boards wth thicknesses of 1 to 5 inches that are generally used in construction and sold in various sizes, e.g., 2 × 4, 4 × 8, 2 × 10 —synonym sawnwood, sawtimberThis definition last updated 07/13/2008