Post

The Post paper size measures 15.5 inches (394 mm) wide by 19.3 inches (489 mm) high, resulting in a moderate total surface area of 299 square inches per sheet. Neither tiny nor massive, Post pages have traditionally served well as a versatile medium format for everyday business letters, basic graphics drafting, general office use, standard artwork needs, and various document publishing purposes not requiring small pocket sizes or large spreads. Sometimes referred to as Long Bond, Post's balanced dimensions lend themselves efficiently to typical applications like professional correspondence, affidavits, interrogatories, commercial brochures, average data table records, medium-sized ledger sheets, and convenient file folder sizing falling in between cramped and spacious proportions. Having origins as an Imperial format used ubiquitously by postal service and mail applications, the naming and enduring utility of Post size sheets stems from their ability to practically fit reams of everyday information exchange documents.