Paper Sizes
'A', 'RA', & 'SRA' Series
| A1 | 594x841mm | RA1 | 610x860mm | SRA1 | 640x900mm |
| A2 | 420x594mm | RA2 | 430x610mm | SRA2 | 450x640mm |
| A3 | 297x420mm | SRA3 | 320x450mm | ||
| A4 | 210x297mm | SRA4 | 225x320mm |
Imperial Sizes
| Royal | 520x640mm (20"x25", Rounded) |
| Double Crown | 510x760mm (20"x30", Rounded) |
| Imperial | 560x760mm (22"x30", Rounded) |
| 25"x30" | 635x760mm (25"x30", Rounded) |