Get this Ground Contact Pressure Treated Post for delivery. This 4x4x12 ground contact pressure treated lumber can be used in both above ground and ground contact exterior applications. Must use ground contact pressure treated lumber where lumber is at risk for poor air circulation, less than six inches from the ground, or has poor or no water drainage below the structure. Ideal for a variety of general uses including exposed structures, sill plates, decks, docks, ramps and other outdoor applications. Uniform thickness, density and appearance for stable and long lasting performance. Hot-dip galvanized fasteners are recommended. No two pieces of lumber are the same. Color, grain pattern and texture will vary as well. Common/Nominal size: 4 in. x 4 in. x 12 ft.; actual size: 3-1/2 in. x 3-1/2 in. x 12 ft.