Interlocking rubber outdoor tiles are available from our store and are intended for the home gym flooring industry. The black recycled rubber tiles with ten percent grey flecks provide the appearance of an expensive gym floor. The rubber tiles, which are 8 mm thick and measure 5/16 of an inch, shield the subfloor from vibrations caused by workout equipment like treadmills. They are pe... https://modutile.com/product/interlocking-rubber-floor-tiles-23x23-8mm/