2’*4′ green ground access mats seller . HDPE Ground protection mats 2’*4′ for swamp ground HDPE [] IN STOCK! - 4x8 Black Mats. Our ground protection mats made from 100% recycled high-density polyethylene (HDPE), can hold up to 100 tons and are tough enough to not break. Mats have cleats and textured tops to aid with helping the