It's easy, simple assembly in minutes requires only a powered screwdriver and a saw. Only straight, 90 deg cuts are required, no miters or angles. Just add 2x4's?? to the 2x4basics?? ProBrackets to make a very well-built sawhorse up to 8 ft long and 4 ft high. Because you add the lumber, you are no longer limited to a "Standard" size sawhorse. By making your sawhorses wider or by utilizing the lower shelf, you can purchase only two ProBrackets for jobs that would require four or more standard sized sawhorses. Cutting 4 x 8 sheets of plywood or priming wood trim has never been easier. Made of heavy-gauge structural resin and assembled with rugged 2x4's??, ProBrackets can support up to 20,00 lb per pair.