Synergee Foam & Rubber Flooring | Synergee Fitness USA
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 :
Rubber-Cal Diamond Plate 4 ft. x 8 ft. Black Rubber Flooring (32 sq. ft.) 03-206-W100-08 - The Home Depot
Home Gym Rubber Flooring | Perfect Surfaces
Rubber Gym Flooring Canada | Gym Floor Mats and Tiles
Gym & Multi-Purpose Flooring | Costco
Rubber Flooring Rolls - Rubber Flooring Direct
Heavy Duty Rubber Gym Mats - 3/4" 4ft x 6ft - Pallet of 25
Amazon.com: Round Rug 5 Ft Fluffy Circle Area Rugs Canada National Day Red Maple Leaves Soft Plush Carpet Non-Slip Living Room Floor Mats Washable Entryway Foyer Throw Rugs for Bedroom : Home
Rubber Gym Flooring Canada | Gym Floor Mats and Tiles