Royal Mail letter and large letter sizing guide - Can be Personalised
This handy guide allows you to work out your mail costs by giving you the correct sizes for each of the 2 letter types.
Top text - Royal Mail Letter / Large Letter text can be replaced with your own text.
Please note that the standard Royal Mail header text will be sent out if personalised text isnt provided.
Push your package without force through the slot. If it fits in the small 165x5mm slot it's a letter.
If it slots through the 250x25mm one then it is a large letter.
Made from 4mm or 6mm thick Poplar ply not MDF.