Translucent floor panels provided by Jettestone are easy to assemble; lining the bottom of the grid from below with fluorescent tube lights provides light from below when natural light is not available; the parking lot below would hardly be affected by the overhang extending above it. Any finished coating can be applied, such as one that matches that of the rest of the gym. Resilient plastic compound will endure impacts 10 times more powerful than glass; weighs about 50% less; saves money on support beams.