2. Add approx. 2” inches to the dimension you recorded in Step 1 above. For this example, you’ll need a sheet of paper 9x9 inches square to make your envelope. I make my envelopes a bit larger than normal since I tend to make lumpy cards. If you find 2” is too much, try adding 1” or 1 ½ “ to your diagonal measurement instead.
3. Once you have your square of paper for your envelope, lightly trace lines on the reverse as shown below.
4. At each edge, cut a 1 ¼ ” notch as shown by the shaded sections below.
5. You will have an envelope base that looks like the diagram below. Next, score on the dotted lines shown below. 6. Now, you can now fold your envelope and attach adhesive to the flaps. This makes a perfect square envelope every time. You can alter your measurements to accommodate any square card: 3x3, 6x6, etc.