Maxx-Tuff" Heavy-Duty Mats - The Rubber Flooring Experts
American Floor Mats Fit-Lock 3/8 Inch Heavy Duty Rubber Flooring - Interlocking Rubber Tiles (24" x 24" Tile) 10% Grey 6' x 8' Set (12 Tiles Total) - Exercise Mats, Home Gym Sets - Amazon.com
Rubber Gym Mat - 1/2" thick, 4 x 25' H-9400 - Uline
IBF Iron Body Fitness Treadmill and Exercise Equipment Heavy-Duty Floor Mat – 6'6” (198 cm) Super Tough Sponge Vinyl Mat for Treadmills, Indoor Cycles, Exercise Upright Bikes and Steppers, Treadmills - Amazon Canada
Sundance Mat Straight Edge Standard 3/4 Inch - 4x6 Ft.
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 :
Amazon.com: ProsourceFit Extra Thick Puzzle Exercise Mat 1”, EVA Foam Interlocking Tiles for Protective, Cushioned Workout Flooring for Home and Gym Equipment, Black : Sports & Outdoors
Kosipad Landing Gym Crash Mat 9cm Thick Density Foam Crash - Etsy Canada
Interlocking Floor Mats - The Quickest Way to High Performan – Sprung Gym Flooring
Rubber Gym Flooring Canada | Gym Floor Mats and Tiles
$29.99 Rubber Floor Mats 4' x 6' x 3/4" - Second Quality - Cashmans
Gym Rubber Flooring mat, 12mm Thickness (6ft x 4ft) Heavy Duty Large, 25kg | eBay
Amazon.com: innhom Gym Flooring Gym Mats Exercise Mat for Floor Workout Mat Foam Floor Tiles for Home Gym Equipment Garage, 12 Black and 12 Blue : Sports & Outdoors
How to Design a Home Gym That You'll Actually Use - The New York Times