2×6 ft ground access mats for civil Engineering-High Quality 2×6 Ground Protection Mat, Smooth Side, 120 Ton, Clear 100% recycled high-density polyethylene (HDPE) Supports loads up to 120 ton 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.