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Drawings - Standard Metric Sizes

Standard metric drawing sheet sizes.

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The ISO A0 size is defined as having an area of one square meter. Each smaller sheet size is exactly half the area of the previous size

  • an A0 sheet cut in half gives two A1 sheets
  • an A1 sheet in half you get two A2 sheets

ISO - drawing sizes - A4, A5 ...

DesignationSize of sheetSize of frame
A
mm
B
mm
C
mm
D
mm
A0 841 1189 791 1139
A1 594 841 554 804
A2 420 594 380 554
A3 297 420 267 390
A4 210 297 180 267
A5 148 210    
A6 105 148    
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