Royal Mail Size Guide Ruler – Including Small & Medium Parcel Sizes

Royal Mail Size Guide Ruler – Including Small & Medium Parcel Sizes


Are you confused with all the recent changes regarding parcel sizes? Are you fed up of paying Royal Mail surcharges? Has your cardboard mail size guide worn out? If one of these questions apply to you then it will be worth while investing in our Royal Mail size guide ruler which now includes the brand new small and medium parcel sizes.


Try our Royal Mail Size Guide Ruler. This small and compact size guide is very convenient to have at hand when you’re just not sure what price to pay for your mail. It will tell you if a letter is too thick to be a standard letter or too thick to be a large letter and now if your item is small enough to go within the Royal Mail’s new Small Parcel tariff. Simple!!

This is the first Royal Mail Size Guide Ruler to include the brand new Small Parcel size which has now increased in thickness from 80mm to 160mm.

Further Information

View the latest information about this product below.

  • Since 20th October 2014, the Royal Mail have changed to a new simpler small parcel size and our New Size Guide will be the only one on the market to offer Letter, Large Letter and the New Small Parcel slots.
  • Made of a 5mm hard plastic. It’s also the only guide of its kind to include measurements up to 460mm which is the depth and width of a Royal Mail Medium Parcel size.
  • Displays Useful Help and Contact Information.
  • Use it in conjunction with your postal scale to never get it wrong again!

Additional information

Envelope Quality Weight


Envelope Colour


Envelope Type

Non Windowed

Envelope Flaps / Seal

Self Seal

Envelope Dimensions

C5, 162mm x 229mm

Box Quantity



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