A filing cabinet (or sometimes file cabinet in American English) is a piece of office furniture usually used to store paper documents in file folders. In the most simple context, it is an enclosure for drawers in which items are stored. The two most common forms of filing cabinets are vertical files and lateral files. A vertical filing cabinet has drawers that extend from the short side (typically 15 inches) of the cabinet. A lateral filing cabinet has drawers that extend from the long side (various lengths) of the cabinet. These are also called side filers in Great Britain. There are also shelf files, which go on shelves. In the United States, filing cabinets are usually built to accommodate 8.5 in × 11 in paper, and in other countries, filing cabinets are often designed to hold other sizes of paper, such as A4 paper.