Editing Space bar (section)

==Dimensions and mounts==
{{main|Space bar dimensions|space by keyboard}}

The size of the space bar varies by keyboard. On some vintage keyboards, the space bar is almost the same width as the entire alphanumeric area. On modern Western keyboards, space bar is typically between 6 and 7 [[unit]]s wide, being by far still the widest key on the keyboard. As the Japanese language does not use spaces, the space bar on [[JIS|Japanese keyboards]] is fairly small, often as small as left shift.

The width of the space keycap and the positions of the mounts—the pegs or slots where the keycap attaches to the switch and the stabilisers—varies between keyboard, even between keyboards that use the same switches. These differences cause problems with purchasing aftermarket keycaps, as the space bar from a particular keycap set may not fit the keyboard for which the purchase was intended. Unlike other keycaps where the differences are fairly small in number (e.g. ISO vs ANSI left shift, 1.25 or 1.5-unit modifiers), the space bar varies in dimensions significantly.