Mezzanine is stand alone structure that meets IB building code for seismic design categories A to C. Structural steel beams, purlins, and girders with 5" x 5" square columns help create a rigid floor space. Underside has a white finish to enhance light levels. A full perimeter steel fascia conceals the edges of the deck surface. Gray polyurethane acrylic enamel painted finish. High-density composite flooring is highly recommended for structures that need to accommodate heavy pallet jacks, carts, or dollies.