Measurements are below.
Cardstock 12x12 score at 3 and 9 turn and score at 3 and 9.
Top of box cardstock is 10x10, score at 2 and 8 turn and score at 2 and 8
Mats for bottom are cut at 2 3/4x5 3/4 cut 4
Mats for top sides are cut at 1 3/4x5 3/4 cut 3
Mat for top is 5 3/4x5 3/4
That is it! Now just watch the video and I will show you how this is put together.
Have fun! And thank you Deborah for the suggestion.