Proline Decorative Concrete Systems BW100 12" x 48" Boardwalk Wood Planks with Nails Concrete Stamp. Proline offers the look of wood flooring with the durability of concrete. Our Boardwalk is highly life-like, right down to the pegs in the planks. Each plank is 12 Inch wide and comes in 4 ft, 6 ft and 8 ft lengths. Use our Water Based Acrylic Stains to color this pattern to your choice - brown tones for natural wood look. Color in gray tones and add our Wild Mustang Border Art for a true Western look.