4 in. x 4 in. x 96 in. Heartwood Composite Fence Post with Solid . Veranda All-Purpose composite posts are true 4 in. x 4 in. posts and are 8 ft. in length. These posts match the color families of the Verada composite cross rails and pickets. They provide the beauty of wood without the maintenance of wood. California residents: see Proposition 65 information. Use for in-line, ends, corners,..