3.2 Key Lines and Markings

Rule R1(b) sets out the markings at each end of the sheet, drawn from side line to side line: Tee line: Maximum width 13 mm (1/2 in), placed so its centre is 17.375 m (57 ft) from the middle of the sheet.; Back line: Maximum width 13 mm (1/2 in), with its outside edge 1.829 m (6 ft) from the cent...

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