Amazon.com: American Floor Mats - Horse/Stable Mats - Heavy Duty Stall Mats - Thick, Durable Rubber Flooring Solid Black 1/2" Thick - 4' x 6' Mat : Pet Supplies
SurfaceCo - Interlocking Stall Mats 3/4" – The Treadmill Factory
Stall Mats – Lincoln Sand And Rocks
$29.99 Rubber Floor Mats 4' x 6' x 3/4" - Second Quality - Cashmans
Horse Stable Matting - Why Rubber is the Best Solution – Sprung Gym Flooring