Mid to high-rise residential structures have traditionally used a cast-in-place reinforced concrete structural system which offers such benefits as low floor to floor height and fireproof construction. With similar benefits, low to mid-rise buildings often utilize bearing wall systems supporting precast slabs. These structural systems are time consuming, weather sensitive and labor intensive. Girder-Slab Technologies, LLC set out to develop a more efficient structural steel based framing system for mid and high-rise residential construction.