Sheet Size

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 A0 A1 A2 A3 A4 A5 A6

Size in millimetres 1189 x 841 841 x 591 594 x 420 420 x 297 297 x 210 210 x 148 148 x 105

Size in inches 46.81 x 33.11 33.11 x 23.39 23.39 x 16.55 16.55 x 11.69 11.69 x 8.27 8.27 x 5.84 5.84 x 4.13

BS EN ISO 5457 Drawing Sheet Sizes Designation Trimmed Sheet

Drawing Space +/- 0.5mm

Untrimmed sheet +/- 2mm

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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