Answer
Jan 01, 2013 - 12:00 AM
Paper weight refers to the weight of a 500-sheet ream of 17" x 22" paper. Each of these sheets is equivalent to four letter size sheets. Therefore, 500 sheets of standard 20# paper weighs 5 pounds. The higher the paper weight, the thicker the sheet of paper. Higher weight paper is more durable and has a more substantial feel. It also allows less light to pass through. Standard 20# paper is used for everyday printing and copying, and for high-volume needs. Heavier paper is used for presentations and other applications where quality is important.