<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> <P> Although the term goal line is often taken to mean only that part of the line between the goalposts, in fact it refers to the complete line at either end of the pitch, from one corner flag to the other . In contrast, the term byline (or by - line) is often used to refer to that portion of the goal line outside the goalposts . This term is commonly used in football commentaries and match descriptions, such as this example from a BBC match report; "Udeze gets to the left byline and his looping cross is cleared ..." </P> <P> Goals are placed at the centre of each goal - line . These consist of two upright posts placed equidistant from the corner flagposts, joined at the top by a horizontal crossbar . The inner edges of the posts must be 7.32 metres (8 yd) apart, and the lower edge of the crossbar must be 2.44 metres (8 ft) above the ground . Nets are usually placed behind the goal, though are not required by the Laws . </P> <P> Goalposts and crossbars must be white, and made of wood, metal or other approved material . Rules regarding the shape of goalposts and crossbars are somewhat more lenient, but they must conform to a shape that does not pose a threat to players . Since the beginning of the football there have always been goalposts, but the crossbar wasn't invented until 1875, where a string between the goalposts was used . </P>

What is the measurement of a goal post
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