Here is how it's done. First, separate the front and back. Take a ruler or straight edge and draw a line (the same width) on all four sides. For the top of the box draw the lines on the back of the FRONT of the card. For the bottom of the box draw the lines on the front or inside of the BACK half of the card. Cut along the lines only on the ends as shown.
Fold the corners and sides along the lines and tape on the inside and corners on the ends.
|Top of box|
|Finished box about the size of a pocket pack of tissues.|