Now that Stampin’ Up! is no longer going to carry square envelopes, you will need to make your own. It is a very simple process using the Diagonal Score Plate with the Simply Scored tool.

Directions:

1. Cut a 10″ square of paper.
2. Score on all sides at 4 5/8″.
3. Cut corners off.
4. Fold on score lines, starting with the sides.
5. Glue the bottom flap to the side ones being careful to not get glue on the inside front of the envelope.
6. Instert your card, fold down the top flap and glue shut.

That’s all there is to it! The finished size of the envelope is 6 1/2″.
Thanks to Jackie Topa for figuring out the measurements.