<P> All line markings on the pitch form part of the area which they define . For example, a ball on or above the touchline is still on the field of play, and a foul committed over the line bounding the penalty area results in a penalty . Therefore, a ball must completely cross the touchline to be out of play, and a ball must wholly cross the goal line (between the goal posts) before a goal is scored; if any part of the ball is still on or above the line, the ball is still in play . </P> <P> The field descriptions that apply to adult matches are described below . Note that due to the original formulation of the Laws in England and the early supremacy of the four British football associations within IFAB, the standard dimensions of a football pitch were originally expressed in imperial units . The Laws now express dimensions with approximate metric equivalents (followed by traditional units in brackets), but use of the imperial units remains common in some countries, especially in the United Kingdom . </P> <P> The pitch is rectangular in shape . The longer sides are called touchlines . The other opposing sides are called the goal lines . The two goal lines must be between 45 and 90 m (50 and 100 yd) and be the same length . The two touch lines must also be of the same length, and be between 90 and 120 m (100 and 130 yd) in length . All lines must be equally wide, not to exceed 12 cm (5 in). The corners of the pitch are marked by corner flags . </P> <P> For international matches the field dimensions are more tightly constrained; the goal lines must be between 64 and 75 m (70 and 80 yd) long and the touch lines must be between 100 and 110 m (110 and 120 yd). In March 2008 the IFAB attempted to standardise the size of the football pitch for international matches and set the official dimensions of a pitch to 105 m long by 68 m wide . However, at a special meeting of the IFAB on 8 May 2008, it was ruled that this change would be put on hold pending a review and the proposed change has not been implemented . </P>

What is the area of a standard football pitch