Units of paper quantity Units of paper quantity Various measures of paper quantity have been and are in use. Although there are no S.I. units such as quires and bales, there are ISO and DIN standards for the ream. Expressions used here include U.S. Customary units. A quire of paper is a measure of paper quantity. The usual meaning is 25 sheets of the same size and quality: of a ream of 500 sheets. Quires of 25 sheets are often used for machine-made paper, while quires of 24 sheets are often used for handmade or specialised paper of 480-sheet reams. (As an old UK
Paper craft century A.D. In much of the West, the term origami is used synonymously with paper folding, though the term properly only refers to the art of paper folding in Japan. Other forms of paper folding include Zhezhi (Chinese paper folding), Jong-i.e.-jeop-gi, from Korea, and Western paper folding, such as the traditional paper boats and paper planes. Papel picado, as practiced in Mexico and other places in Latin America is done using chisels to cut 50 to a hundred sheets at a time, while Chinese paper cutting uses knives or scissors for up to 8 sheets. Wycinanki and other European forms