Paper Sizes.
The standard for drawing sheet sizes is the A series. The basic size in this series is the A0 size (1189mm x 841mm) which has an area of about 1-m3. The sides of every size in the series are in the ratio Sqrt(2) = 1.414 : 1 and each size is half the area of the next larger size.
| Drawing Sheet Size | Size in millimetres | Size in inches |
| A0 | 1189 x 841 | 46.81 x 33.11 |
| A1 | 841 x 594 | 33.11 x 23.39 |
| A2 | 594 x 420 | 23.39 x 16.55 |
| A3 | 420 x 297 | 16.55 x 11.69 |
| A4 | 297 x 210 | 11.69 x 8.27 |
| A5 | 210 x 148 | 8.27 x 5.84 |
| A6 | 148 x 105 | 5.84 x 4.13 |
Preferred Scales For Drawings...
The preferred scales are
1:1, 1:2, 1:5, 1:10, 1:20, 1:50, 1:100
BS EN ISO 5457 Drawing Sheet Sizes
| Designation | Trimmed Sheet | Drawing Space +/- 0.5mm | Untrimmed sheet +/- 2mm | |||
| - | Width (mm) | Length (mm) | Width (mm) | Length (mm) | Width (mm) | Length (mm) |
| A0 | 841 | 1189 | 821 | 1159 | 880 | 1230 |
| A1 | 594 | 841 | 574 | 811 | 625 | 880 |
| A2 | 420 | 594 | 400 | 564 | 450 | 625 |
| A3 | 297 | 420 | 277 | 390 | 330 | 450 |
| A4 | 210 | 297 | 180 | 277 | 240 | 330 |
Useful Links On Drawing Sheet Sizes
- Paper sizes...Wikipedia Paper size
- Drawing Scaled ISO Sheets ...Notes relating to selection of drawing sheet sizes with Autocad
- The ISO 'A' Series ...Metrication.com . Background on the basis for the ISO drawing sizes