Teeing ground

1. The starting place for the hole to be played. It is a rectangular area two club lengths in depth, the front and the sides of which are defined by the outside limits of two TEE MARKERS. A ball is outside the teeing ground when all of it lies outside the stipulated area.



This image demonstrates the length and width of the teeing ground.
Source: http://www.access-board.gov/ recreation/guides/golf.htm