Lap Specifications per Bar Diameter

Millimetres of Lap Related to Number of Bar Diameters
Bar Size	Bar Diameter	Number of Bar Diameters (Using Bar Size)
		10	12	20	24	30	36	48	54
10M	11.3	100	120	200	240	300	360	480	540
15M	16	150	180	300	360	450	540	720	810
20M	19.5	200	240	400	480	600	720	960	1080
25M	25.2	250	300	500	600	750	900	1200	1350
30M	29.9	300	360	600	720	900	1080	1440	1620
35M	35.7	350	420	700	840	1050	1260	1680	1890
45M	43.7	Lap Not Permitted
55M	56.4	Lap Not Permitted

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Related Links:

• RSIC/IAAC Website
• OCCDC Reference Guide