Bumper Guards If your racks are stored in an active area, you’ll want a set of padded Bumper Guards to reduce the chance of impact type injuries. Constructed with ¾stained and treated plywood, and wrapped in Kwik-Stik foam, they’ll offer you years of maintenance free service. They attach with a belted, nylon strap, and are easy to install and remove. Model MR3BG - The Mat Rack Winch Loaded Bumper Guard Specifications Length - 18' 4 Width - 4' 6 Height - 6' 7 Cost: $7800 plus S&H Special ship charges apply.