Amazon.com: Rubber-Cal Diamond-Plate Rubber Flooring Rolls - 3 mm x 4 ft x 4 ft Rolls - Black : Tools & Home Improvement
Multy Home 100% Recycled Rubber Utility Floor Mat, 6-pk, Black, 18-in x 18-in | Canadian Tire
Shock Athletic - Tapis de protection pour équipement sportif 3 x 6 1⁄2 pi, 1 pc | Canadian Tire | Athletic equipment, Ellipticals, Athletic
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 :
Tapis de Caoutchouc pour gym 4''X6''X3/4 (Produit canadien 100% d'éque – Fitness A Rabais
Mat, Ribbed, 4 x 6-ft | Canadian Tire
Amazon.com: Rubber-Cal Composite Rib Corrugated Rubber Floor Mats - 1/8" Thick x 4ft x 1ft Anti-Slip Mat : Sports & Outdoors