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Everything you need to know about envelopes

ISO Series (Under-size)

'A' series covers flat sheets, stationery and books, 'B' series is an alternative intermediate size range, normally used for items such as posters and wall charts and includes some envelope sizes and the ‘C’ series applies exclusively to envelopes. Other common sizes have evolved from this system and include under size DL, over size DL and oversize C5 which are suitable for use with automatic mailing machines where the contents are automatically inserted. (See also ISO, ISO Paper Sizes.)

  1. Select a series:
  2. Select a size:

Dimensions for A0: 841 × 1189 mm