Length of sheet: 146 feet to 150 feet or 44.501 metres to 45.720 metres. Width of sheet: minimum 14 feet and 2 inches to maximum 15 feet and 7 inches. Or minimum 4.318 metres to maximum 4.750 metres. Backboard to hack: 4 feet to 6 feet or 1.219 metres to 1.829 metres. Hack to back line: 6 feet or 1.829 metres. Outside edge of back line to tee line: 6 feet or 1.829 metres. Tee line to inside edge of hog line (Free Guard Zone): 21 feet or 6.401 metres Tee line to tee line: 114 feet or 34.747 metres. Hog line width: 4 inches or 10.16 cm. Inside edge of hog line to inside edge of hog line: 72 feet or 21.945 metres. Radius of each circle in the house from where the tee line and centre line intersect: 12-foot: 6 feet or 1.829 metres Eight-foot: 4 feet or 1.219 metres Four-foot: 2 feet or 0.612 metres Button: 6 inches to 9 inches or 0.152 metres. Separation between hacks: 6 inches or 15.24 cm. Distance between outside edges of hacks: 18 inches or 45.72. Hack length: 8 inches or 10.32 cm.