Cheers,There is regulation as to the minimum and maximum length and width.
Just had a quick Google,
According to the stipulations from FIFA a football field should have a certain minimum and maximum dimensions: The length (touch line) has to be minimum 90 metres (100 yds) and maximum 120 metres (130 yds). The width (goal line) has to be minimum 45 metres (50 yds) and maximum 90 metres (100 yds).
I honestly thought all footie pitches had to be laid out the the same dimensions, I learn something every day