Poly America L P 22400274 Husky 4 Mil Clear Poly Film 6'x100' For your next construction project consider using 6 ft. x 100 ft. Plastic Sheeting. This clear, heavy-duty coverall is 4 mil thick. You can use this sheeting to winterize windows, as a cover for outdoor protection and as a paint drop cloth on floors. This plastic sheeting can cover an area up to 600 sq. ft. Made of polyethylene 4 mil thick Clear Heavy-duty coverall