Letterbox and mailbox post number

Letterbox and mailbox post number

This sheet prints 7A as solid black numerals 7.5 cm tall in a classic style, both on one A4 sheet, to cut out for a letterbox, a mailbox post or a flat door. The number is about 15 cm wide, and each piece has a baseline and top line exactly 7.5 cm apart.

Last reviewed 3 October 2026

About this version

Letterboxes, mailbox posts, intercom panels and flat doors need a smaller number than a front door or a gate, because there is less room and they are read from close by. This preset prints 7A at 7.5 cm tall in solid black, in the classic style, which keeps its shape well at a small size. Both characters fit on one portrait A4 sheet with room to spare. Each piece has a baseline and a top line exactly 7.5 cm apart, so you can check the size with a ruler, and the whole number is about 15 cm wide as the lettering spaces it.

Type your own number, a flat number such as Flat 3, or a letter suffix. For a very small mailbox or a door plate, 5 cm is the smallest size and fits a space about 10 cm wide. If you want to paint the number rather than stick it on, choose the outline style and trace it. A colour that matches the door works as long as it contrasts well with the surface behind.

Cut round each character with a craft knife on a cutting mat for the cleanest edges; scissors work for the outside but the inside of the A is easier with a knife. Stick the pieces in place with a glue stick and cover them with clear tape or sticky-back plastic, overlapping the edges. On a metal letterbox in the rain, paper will last a few months at best, so think of this as a neat temporary number or a guide for painting.

For a lasting number on a mailbox post, trace the outline style onto the wood, paint it with exterior enamel and a fine brush, and finish with clear exterior varnish. Rural mailbox posts and shared entrances often have several numbers side by side; print them all at the same height and line them up on one pencil baseline so they read as a set.