Letter Size Guides Letter Size Guides come in all sorts of sizes. Here below are a few of the more popular Letter Size Guides that are currently available. Drivermax Download Gratis. To buy any of these then. The first letter size guide is designed similar to a normal ruler. This letter size guide is made from plastic and has 2 slots to represent the different letter sizes. Available form various places and selling for about £3 or more plus P&P.

Its available from various places but my research seems to suggest that has the cheapest. There are other Letter Size Guides available which can range from nearly £3 to £55 or more depending where they are purchased.

Royal Mail Letter Size Guide Template. 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.