| Module width (HP) | Calculated width (mm)multiples of 5.08 mm | Actual width (mm) |
|---|---|---|
| 1 | 5.08 | 5.00 |
| 1.5 | 7.62 | 7.50 |
| 2 | 10.16 | 9.80 |
| 4 | 20.32 | 20.00 |
| 6 | 30.48 | 30.00 |
| 8 | 40.64 | 40.30 |
| 10 | 50.80 | 50.50 |
| 12 | 60.96 | 60.60 |
| 14 | 71.12 | 70.80 |
| 16 | 81.28 | 80.90 |
| 18 | 91.44 | 91.30 |
| 20 | 101.60 | 101.30 |
| 21 | 106.68 | 106.30 |
| 22 | 111.76 | 111.40 |
| 28 | 142.24 | 141.90 |
| 42 | 213.36 | 213.00 |
Widths from the Doepfer A-100 specification.
