What is the difference between bond and index?
Bond paper starts out in a 17 x 22 inch sheet, which is cut down into quarters that result in 8½ x 11 inch sheets. The Bond weight is determined by the initial weight of 500 sheets of the 17 x 22 inch sheets. Index stock on the other hand is a heavier weight, which is determined by 500 sheets of 25½ x 30½ inch sheets. See the media conversion chart at the end of this document.