2x4-10' #2&BTR APPEARANCE GRADE SPF, (Actual size 1-1/2"x3-1/2"x120") | #2 &BTR Appearance Grade Spruce Pine Fir (SPF) is recommended for construction where high strength, stiffness and good appearance are desired.#2&BTR Appearance Grade SPF is ideal for Residential, commercial, and industrial construction. Small to medium knots permitted, some wane is allowed. Association Grade Stamped and kiln dried to a moisture content level less than 19% to increase stability. 2x4-10' (Actual Size 1-1/2"x 3-1/2"x 120")