1 Types of Gutters and How to Prepare for an Install. 2  Advice on Gutters and Downspouts. 3  Tips for Cleaning and Repairing Gutters.  Outdoor Spring Maintenance Tips.
One mil is 1/000th of an inch. A sheet of paper is 4/1000ths of an inch thick, so 10 mil has the thickness of 2 1/2 sheets of paper. A mil is not to be confused with a millimeter(mm). On average human hair is 100 microns or .004 inches. 10 mil is the width of about 2 and a half human hairs.
A denier is a unit of weight for fibers. It is defined as the weight of 9,000 meters of the fiber, and it is generally measured in grams. The current denier standard is 10 grams per 9,000 meters. Microns, also called micrometers, are units of measurement that equal one millionth of a meter. To put that into perspective, the diameter of a strand of human hair is between 20 and 180 microns.