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Square cards can be fun to make and can help you make the most of your materials. However, square cards do cost more to mail. In the US, a square card costs 70 cents in postage, rather than the standard 55 cents. The reason for this is that square cards can’t be processed by an automatic sorting machine and must be processed by a postal worker.
There are a few options for mailing square cards:
Add a 15-cent stamp
The post office sells 15-cent “additional ounce” stamps for letters that weigh over an ounce, and you can use these stamps with a regular first class stamp to reach the 70 cent total. It’s a good idea to have some of these stamps on hand for rectangular cards that go over one ounce. However, having two stamps on an already small envelope can look a little crowded.
Use a 70-cent stamp
The post office sells 70-cent “non-machinable surcharge” stamps for square cards. They are pretty, but if you don’t have any on hand, you’ll need to make a special trip to the post office.
Use a rectangular envelope
I’m always in a hurry to get cards in the mail, and I like this option uses what I have on hand and doesn’t require a special trip to the post office. Also, I don’t usually make envelopes for my cards, because I want to save time and because they quickly get tossed.
I always have A7 envelopes on hand for 5″x 7″ size cards. For a square card, I simply cut a piece of cardstock to place in the envelope to make it rigid and keep it from getting chewed up by the post office machine.
I either cut a 5″x7″ piece with a paper trimmer from a scrap, or use this Design Space file to cut two pieces from a letter size piece of cardstock with my Cricut.
The above post contains an affiliate link. For more information, see my disclosures here.