1 x 4 x 20, Douglas Fir, Standard & Better, Pressure Treated, Surfaced on 4 Sides. 1X4X20 Gdf S&Btr Prem S4S Trt. Douglas Fir, Pressure Treated, Standard & Better grade lumber. Often described as a 20 ft, 1 x 4 (nominal sizing), this product typically measures 3/4 in thick by 3-1/2 in wide. Appearance notes: Surfaced on 4 Sides.

Item Features

• Douglas Fir is the major species produced in the West, with more volume shipped than any other species and its sterling performance history is recognized the world over
• Standard & Better grade lumber is more widely used than other grades for general construction purposes; used for subfloors, roof and wall sheathing, concrete forms and similar types of construction; this grade may also include grades “Better” than Standard
• Pressure-treated wood is wood that has been treated with chemicals that protect the wood from rot and insects
• The board has been surfaced smooth on all 4 sides