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Royal Mail Letter Size Guide Template

Letter, Large Letter, small parcel or parcel?
In 2006 the Royal Mail decided to follow other country’s postal system by introducing Pricing in Proportion. This was a system of charging different amounts for different size letters and packages.
Up until 2006 the Royal Mail charged by the weight of the item now it was to charge by weight and size. To enable the customers….especially business customers to access the correct size of a letter or package a Letter Size Guide template was introduced.

To begin with these were sent out by the Royal Mail in flimsy paper and if you were lucky you could get a limited cardboard version.
Today several years later there are many different versions of the Royal Mail Letter size guide available. See here for a selection.

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Slot Width Measurement Chart

Most of the letter size guides are made from perspex and do have ability in some cases to break or split easily. However the Royal Mail have there own modern version made of very strong plastic and you can see these in the Post Offices up and down the country. You can also buy these Royal Mail Letter size guides and in deed the other versions from Ebay and Amazon.
The first slot is for all mail in letter size, usually a DL, not being thicker than 5mm. The letter MUST pass freely through otherwise it may be considered a Large Letter.
Large letters must again pass through without getting stuck and goes up to 25mm in thickness.
If your mail does not fit either slot it is then becomes a small or large parcel.
Small parcel is items to be posted up to the size of 2 kg in weight, 35cm in length, 25cm in width and 16cm in length. Any thing bigger is a Large Parcel.
Letter size guide s are very useful to anyone who send s out post on a regular basis. Especially Offices, Schools, Doctor Surgery’s, Dentists etc. Even if you have a Franking Machine,as they do not have a Letter Size guide supplied with them. Many members of the public have a Letter Size guide so they can make sure the birthday card with a cheeky badge on it is sent with the correct postage on it.
If the letter or package does not have the correct postage on it the recipient can only obtain the letter by paying an extra £1.20plus the difference of postage between what was placed on the package and the next 2nd class price point.
Pricing in proportion only affects mail posted in the UK going to an UK address. This includes the Channel Islands, Isle of Man and Northern Ireland.
The slots on the letter size guide are not required for mail being sent to Europe or Internationally. This includes the Republic of Ireland.

Slot Width Measurement Tool

Definition: Lot size refers to the quantity of an item ordered for delivery on a specific date or manufactured in a single production run.In other words, lot size basically refers to the total quantity of a product ordered for manufacturing. Driver tips the same size as the slots can be created using files, grinders and other tools available in most workshops. Cleaning a painted-over slot is easier than cleaning out more complicated recesses. A new slot can easily be cut with a hacksaw.