NEW" Interlocking Rubber Floor Tiles. Great for Home and Commercial Gyms, Kids Play Area, Fitness Centers, Warehouses, Basements, Garages, etc. Tiles measure 19.5 x 19.5 inches (2.64 square feet) and 3/8 inches thick. "4 Corner, 56 Border & 180 Center piece tiles available with complete palette which measures 633.75 square feet. Large quantities available!