30mm bog ground polyethylene access sheet best bog temporary roadway sheet-Professional Ground Home » News » Ground Protection Mats » 48 x 96 bog temporary roadway sheet 4x8 plastic panels Superior Graphic Supplies White Matte Polystyrene Opaque Plastic Sheet - 48 X 96 Inches - 20mil / 0.020” / 0.51MM Thickness - 1 Sheet 4.2 out of 5 stars