natural ground protection boards 2×6 ft for swamp ground. 3x6 ft (910*1830mm) 2x6 ft (610*1830mm) 2x4 ft (610*1220mm) HDPE Ground Protection Mat has the advantages of light weight, high load-bearing capacity, wear resistance, rrosion resistance, impact resistance, toughness, shock HENAN OKAYorption and moisture resistance.