Paper Drafting Sizes - Comparing ISO and U.S. Drawing Sheets
ISO vs. U.S. and Canadian drawing sheets.
The table below can be used to compare ISO drawing sheets (based on ISO 216) with to American drawing sheets (based on ANSI/ASME 14.1):
| ISO | USA Sizes | |||||
|---|---|---|---|---|---|---|
| Letter | Width | Length | Letter | inches | ||
| mm | inches | mm | inches | |||
| F | 28.0 x 40.0 | |||||
| A0 | 841 | 33.11 | 1189 | 46.81 | E | 34.0 x 44.0 |
| A1 | 594 | 23.39 | 841 | 33.11 | D | 22.0 x 34.0 |
| A2 | 420 | 16.54 | 594 | 23.39 | C | 17.0 x 22.0 |
| A3 | 297 | 11.69 | 420 | 16.54 | B | 11.0 x 17.0 |
| A4 | 210 | 8.27 | 297 | 11.69 | A | 8.5 x 11.0 |
