Amazon.com: Treadmill Mat Pads, Exercise Equipment Mat with High Density Rubber for Protect Floors 4.7" x 3.2" x 0.55" (6 PCS) Black : Sports & Outdoors
Factory Customized 20 mm EPDM Rubber Flooring Mat for Gym - China Rubber Floor Tile, Flooring | Made-in-China.com
Rubber Flooring Gym Mat 3.0 - Bells Of Steel Canada
Customized Indoor Fitness Carpet Crossfit Gym Mat Flooring Composite Rubber Tiles - China Rubber Floor, Gym Mat | Made-in-China.com
Factory Customized 20 mm EPDM Rubber Flooring Mat for Gym - China Rubber Floor Tile, Flooring | Made-in-China.com
EVA Jigsaw Flooring
Costco (in Canada at least) has these sweet rubber mats that remind me of the gym. Way cheaper than Amazon since they are heavy as heck! It's flat on the other side :