This system combines specially processed and toughened glass panes, bolted together at the corners by means of metal patch fittings referred to as spider fittings. Pane-to-pane joints are sealed with a silicone sealant. Toughened glass stabilizers provide each vertical joint with lateral stiffness to counter wind load. Such assemblies are suspended from the building structure by hangers bolted to the top edge or MS truss fitted to the side walls.