| Designation | Size, mm | inches |
|---|---|---|
| C0 | 917X1297 | 36.10X51.06 |
| C1 | 648X917 | 25.51X36.10 |
| C2 | 458X648 | 18.03X25.51 |
| C3 | 324X458 | 12.76X18.03 |
| C4 | 229X324 | 9.02X12.76 |
| C5 | 162X229 | 6.38X9.02 |
| C6 | 114X162 | 4.49X6.38 |
| C7 | 81X114 | 3.19X4.49 |
| C8 | 57X81 | 2.24X3.19 |
| C9 | 40X57 | 1.57X2.24 |
| C10 | 28X40 | 1.10X1.57 |