The dimensions of ledger paper are 17 inches by 11 inches. The long measurement is the width, and the short measurement is the height. Ledger and tabloid paper have identical dimensions; tabloid is a vertical orientation, but ledger is horizontal.
A piece of ledger paper is twice the size of standard letter paper. This size of paper conforms to the American National Standards Institute (ANSI) ASME Y14.1 standard, which defines sizes of paper based on an 8 1/2 inch by 11 inch sheet. These sizes are used in the United States. In Mexico and Canada, they appear along with the ISO standard sizes.