11.3.2.2.2-8 Key Spacing

Center line distances between adjacent keys should be in the range between a minimum of 18 mm (0.71 in.) and a maximum of 19 mm (0.75 in.) horizontally and between 18 mm (0.71 in.) and 21 mm (0.82 in.) vertically.

Additional Information: The above key-spacing specification applies to keys within a functional group but not to the separation between functional groups of keys. Key spacing is measured by the horizontal or vertical distance between corresponding points on two adjacent keys. Function keys and infrequently used keys may have a smaller key spacing. 5908, 100