Get this Strapping Lumber delivered onsite. This 1x3x16 SPF dimensional lumber is suitable for the framing of your construction and renovation projects. Species may vary among spruce, pine, and fir. This framing lumber can be primed and painted or sealed and stained. Surfaced on 4 sides (S4S). Kiln dried and heat treated for extra stability. Untreated lumber. Nominal/Common size: 1 in. x 3 in. x 16 ft.; actual size: 3/4 in. x 2-1/2 in. x 16 ft.