American Floor Mats 3/8in (9mm) Thick Solid Black 4' x 6' Heavy Duty Rubber Rolls, Protective Exercise Mats, Home Gym Rubber Flooring - - Amazon.com
IncStores 3/8 Inch Thick Heavy Duty Rubber Flooring Roll | Flexible Recycled Rubber Roll Flooring for a Stronger and Safer Basement, Home Gym, Shed, or Trailer | Blue/Gray, 4ft x 10ft - - Amazon.com
Garage Gym Flooring - Protect your Equipment and Foundation