Editing Paper size (section)

=== Grain ===

Most industry standards express the direction of the [[Paper#Paper grain|grain]] last when giving dimensions (that is, 17&nbsp;×&nbsp;11 inches is short grain paper and 11&nbsp;×&nbsp;17 inches is long grain paper), although alternatively the grain alignment can be explicitly indicated with an underline ({{underline|11}}&nbsp;×&nbsp;17 is a short grain) or the letter "M" for "machine" (11M&nbsp;×&nbsp;17 is a short grain). Grain is important because the paper will crack if folded across the grain: for example, if a sheet 17&nbsp;×&nbsp;11 inches is to be folded to divide the sheet into two 8.5&nbsp;×&nbsp;11 halves, then the grain will be along the 11-inch side.<ref name="xerox-grain">{{cite web |url=http://www.xerox.com/printer-supplies/paper-stock/paper-grain/enus.html |title=Paper Grain & Smoothness: Don't Go Against the Grain |publisher=[[Xerox]] Corp. |quote=A paper mill may indicate paper grain on carton and ream labels, product brochures, swatch books and price lists in several ways: # You may see the words Grain Long or Grain Short. # The dimension parallel to the grain may be underscored. For example, 8.5x{{underline|11}} indicates long grain, while {{underline|11}}x17 indicates short grain. # 'M' may be used to indicate machine direction, for example, 11xM17 indicates short grain. Fold paper parallel to the grain direction. Paper folded against the grain may be rough and crack along the folded edge. The heavier the paper, the more likely roughness and cracking will occur.|access-date=10 May 2013 |archive-url=https://web.archive.org/web/20130425030450/http://www.xerox.com/printer-supplies/paper-stock/paper-grain/enus.html |archive-date=25 April 2013 |url-status=dead }}</ref> Paper intended to be fed into a machine that will bend the paper around rollers, such as a [[printing press]], [[photocopier]] or [[typewriter]], should be fed grain edge first so that the axis of the rollers is along the grain.
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