Heavy-duty sand screed board Made from high tensile strength aluminum Walls are 0.125 in (3.2 mm) thick, twice the thickness of competition Available in four lengths: 2 ft, 4 ft, 6 ft & 8 ft (61, 122, 183 & 244 cm) Durable 1 x 4 in (2.5 x 10 cm) Welded ends prevent sand getting inside the board