Double-sided pattern Ground nstruction mats 2×8 ft for Double-sided pattern ground access mats 20mm thick for parit Matrax TNG Ground Protection Mat – 4 x 8, double sided, load bearing weight up to 80 tons (160,000 lbs) Greatmats Ground Protection Mat – 4 x 8 feet, double sided, load bearing weight up to 80 tons.