Plastic Flooring for Dumps. We Install or Will Send Instructions. Best Prices Around! For 1-1/2% Discount Mention Rock & Dirt. We Sell Tarps. WE HAVE A HUGE STOCK OF HMW FLOORING FOR GENERAL USE: 1/16", 1/8", 3/16", 1/4", 3/8", 1/2" In Stock - Odd Sizes Available To Order. Price Breaks on Larger Quantity - High Density Polyethylene Copolymer - Unlimited Uses For The Plastic. The Bedliner Cushions the Blow of Loading, Also Takes the Abuse of the Load Sliding, Wearing the Parent Metal of the Box. Your Hard-Earned Money Needs to be Protected from Daily Wear & Tear.