Got mine today, thanks Amy and Karyn! It was in a red envelope and that was inside a bigger white envelope.


I have a wonderful printed piece called "the Envelopery" that explains postal regulations regarding envelopes very well. This is one of the advantages of being a graphics industry professional - we get neat gadgets.

Envelopes must conform to a certain width/length ratio, as well as being bigger than the minimum size.

The length must be within a 5-inch minimum and an 11.5" maximum, the height must be between 3.5" and 6.125".

Smallest mailable size with a regular stamp is 3 1/2" x 5"

The little red envelope is 4.125" tall. So according to my Envelopery, it would have to be at least 5.375" long, and up to 10 5/16ths" long.

If she was going to tape the envelope to a piece of card stock (at least 5.375" long, of course), she would have the tricky task of taping all four edges down, but leaving the stamped area clear so they could cancel the stamp. Sticking in another envelope is easier!