Paper Sizes

> Just how big is A2 paper?
> Do I need a C5 or C6 envelope?
> What are the standard poster sizes?
Here are the answers to these questions (and more!).

International Standards Organisation (ISO) sizes

'A' Range

This is the finished trimmed size of paper used in printing and related industries.

A7   105mm x 74mm A6   148mm x 105mm A5   210mm x 148mm A4   297mm x 210mm

A3   420mm x 297mm A2   594mm x 420mm A1   841mm x 594mm AO   1189mm x 841mm

'B' Range

This covers an intermediate need for special applications such as oversize documents and posters.

B7   125mm x 88mm B6   176mm x 125mm B5   250mm x 176mm B4   353mm x 250mm

B3    500mm x 353mm B2    707mm x 500mm B1   1000mm x 707mm B0   1414mm x 1000mm

'C' Range

This refers to both envelopes and folders that allow 'A' sized items to be inserted.

C8    81mm x 57mm C7   114mm x 81mm C6   162mm x 114mm C5   229mm x 162mm C4   324mm x 229mm