Drawing Sheet Size - National & International Standards

Drawing Sheet Sizes

The ISO standard has specified a wide range paper formats along with their sizes. However not all of them are widely used in practice. Among all formats, A4 is clearly the most important one for daily office use. The following table shows the paper names under Metric names along with the sizes in both inches and mm

Metric NamemmInches
A5 148 x 210 mm 5.8 x 8.3 inches
A4 210 x 297 mm 8.3 x 11.7 inches
A3+ 297 x 420 mm 11.7 x 16.5 inches
A3 329 x 483 mm 13 x 19 inches
A2 420 x 594 mm 16.5 x 23.4 inches
A1 594 x 841 mm 23.4 x 33.1 inches
A0 841 x 1189 mm 33.1 x 46.8 inches

To understand the sizes of each paper see the following figure
DrawingSheetSize1.png

Furthermore, all the papers are related dimension wise. This relationship is illustrated as shown below
a4.png
The above figure shows that when two A5 sheets are combined then A4 is obtained. Similarly, relationship between all other sheets are shown below:
a3.png
a2.png
a1.png

Apart from the above mentioned sheets there are a few more commonly used types which are listed below

Metric NamemmInches
A (letter) 216 x 279 mm 8.5 x 11 inches
Legal 216 x 356 mm 8.5 x 14 inches
B (ledger) 279 x 432 mm 11 x 17 inches
Super B/Super A3 330 x 483 mm 13 x 19 inches
C 432 x 559 mm 17 x 22 inches
D 559 x 864 mm 22 x 34 inches
E 864 x 1118 mm 34 x 44 inches