Envelope Postal Guide
Pricing in Proportion is the how the Post Office now charges for postage.
Prices now depend on the size, weight and thickness of the items being mailed.
Three Official Formats
There are three formats of mail: Letter, Large Letter and Packet.
The maximum sizes for a ‘Letter’ are:
Size: 240mm x 165mm
The maximum sizes for a ‘Large Letter’ are:
Size: 353mm x 250mm
If the item is larger than a ‘Large Letter’ then it should be considered to be a ‘Packet’.
Pricing in Proportion Ruler
The Pricing in Proportion Ruler (available from your Post Office), will help to identify the size and the thickness of the item.
This ruler is split into two sections.
The red section is for the ‘Letter’ format
White section is for the ‘Large Letter’ format.
Using the PiP ruler with a set of weighing scales and the Post Office’s price charts will help customers to identify the item category.