Double-sided pattern temporary trackway 2×8 for swamp ground Double-sided pattern ground protection boards 20mm thick for Temporary Access and Ground Protection Mats provide short and long term access, E-Mat Heavy Duty Access Mat Double Sided - 2440mm x 1220mm x 12mm - 35kg E-Mat Heavy Duty Access Mat Double Sided - 2440mm x 610mm x 12mm - 17.5kg .