If the files are cut to the sizes indicated in the PDF instructions the box sizes are:
5.5″ x 5.5″ x 1.75″
This project can be cut using 12″ x 12″ mats or letter sized mats.
If a 12″ x 12″ cutting mat is used the maximum size of each box is:
7″ x 7″ x 2.25″
7″ x 7″ x 2.25″
If an 8.5″ x 11″ cutting mat is used the maximum size of each box is:
4.2″ x 4.2″ x 1.4″
4.2″ x 4.2″ x 1.4″