Open Joist from Universal Forest Products is an open-web, all-wood floor truss engineered with strength and load-carrying capabilities, while using less wood fiber than solid-sawn joists. Each truss is tested to a load equivalent of 2.1 times the required residential design load. Short lengths of sustainable harvested lumber minimizing waste. The truss can earn 4.5 LEED points. Finger joinery and waterproof/fire-resistant structural adhesive support a lifetime warranty.