Standard Size | Clear internal radius (mm) | Total internal circumference (mm) | Total external circumference (mm) | No. of board sections per complete circle | No. of degrees per section | Board length per section - Internal (mm) | Board length per section - External (mm) |
0 | 464 | 2915 | 5027 | 6 | 60 | 455 | 791 |
1 | 650 | 4084 | 6195 | 8 | 45 | 488 | 745 |
2 | 1000 | 6283 | 8394 | 12 | 30 | 508 | 682 |
3 | 1500 | 9424 | 11535 | 16 | 22.5 | 576 | 707 |
4 | 2000 | 12566 | 14677 | 20 | 18 | 616 | 721 |
5 | 2500 | 15708 | 17819 | 24 | 15 | 642 | 730 |
6 | 3000 | 18850 | 20960 | 28 | 12.86 | 664 | 738 |
7 | 3665 | 23028 | 25139 | 32 | 11.25 | 709 | 774 |
Standard Size | Clear internal radius (mm) | Total internal circumference (mm) | Total external circumference (mm) | No. of board sections per complete circle | No. of degrees per section | Board length per section - Internal (mm) | Board length per section - External (mm) |
2 | 1000 | 6283 | 8419 | 8 | 45 | 765 | 1025 |
3 | 1500 | 9424 | 11561 | 10 | 36 | 927 | 1137 |
4 | 2000 | 12566 | 14703 | 12 | 30 | 1035 | 1211 |
5 | 2500 | 15708 | 17844 | 16 | 22.5 | 975 | 1108 |
6 | 3000 | 18850 | 20986 | 18 | 20 | 1042 | 1160 |
7 | 3665 | 23028 | 25164 | 22 | 16.36 | 1043 | 1140 |