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Home > Royal Mail for you > Size & Weight formats for mail >
 

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Quick guide to our three formats

Letter

2 Letters Length:240mm max


Width:165mm max


Thickness:5mm max


Weight:100g max

For example: most cards, postcards and bills.

Large Letter

A4 letter Length:353mm max


Width:250mm max


Thickness:25mm max


Weight:750g max

For example: most A4 documents, CDs and magazines.

Everything else is a packet

Thick package Length:over 353mm
OR

Width:over 250mm
OR

Thickness:over 25mm
OR

Weight:over 750g

For example: most gifts, posters and large books.