Standard Measurements used in Soccer
Playing field: Minimum 100 yards long by 50 yards wide; maximum: 130 yards long by 100 yards wide. International matches: Minimum 110 yards long by 70 yards wide; Maximum: 120 yards long by 80 yards wide. Longer boundary lines are called touchlines or sidelines, and shorter boundary lines are called goal lines. Goal area: Two lines drawn at right angles to a goal line, 6 yards from the inside of each goalpost. Lines extend into playing field for 6 yards, and are joined by a line drawn parallel with the goal line. Goals: Distance between posts is 8 yards. Distance from crossbar to the ground is 8 feet. Width and depth of bars not to exceed 5 inches. Weight of ball: Not more than 16 ounces nor less than 14. Circumference of ball: Not greater than 28 inches nor less than 27. Penalty area: Two lines drawn at right angles to the goal line, 18 yards from the inside of each goalpost. Lines extend into playing field for 18 yards and are joined by a line drawn parallel with the goal line. Center circle: Radius of 10 yards. Center at midpoint of halfway line. Flagposts: Not less than 5 feet high, and not less than 1 yard outside the touchline. Corner arc: Quarter circle with a radius of 1 yard from each corner flagpost drawn inside playing field.