Rubber-Cal, Inc. Max-Tuff 1/2'' Rubber Mat & Reviews - Wayfair Canada
Found this 4x6ft 1/4” thick rubber mat at the Home Depot for about $30. Flipped it over so the flat side is up and have been using it with the rack and
Gym Rubber Flooring mat, 12mm Thickness (6ft x 4ft) Heavy Duty Large, 25kg | eBay
IncStores 1/4" Thick Tough Rubber Flooring Roll | Flexible Recycled Rubber Floor Mats for Home Gym | Heavy Duty Rubber Mat for Home Gyms, Sheds, Horse Stall Mat or Trailer | 4'x10'
Bully Mat 4' x 6' Rubber Floor Mats - 1/2" - Mad Matter, Inc.