Chicago Metallic® Spanfast® Drywall Grid System is available in a heavy-duty design, and is built with HDG 40 steel. This gypsum panel suspension system is an ideal choice for short spans or congested plenums where installing hanger wires is difficult and time consuming and, in many applications, eliminates the need for hanger wires. SpanFast™ drywall framing system reduces onsite labor by using a pre-notched drywall ceiling track to lock the furring tees in place. Chicago Metallic™ grid systems are third party certified to meet ASTM standards and are listed with ICCES Evaluation Services, reference report ESR-2631 for further details.