Along the short 9″ edge I made score lines at 3″ and 9″.
Along the long 12″ edge I made score lines at 1.5″, 2.25″, 4.5″, 7.5″, 9.75″ & 10.5″
They will look like this.
If you would like to download a sheet with all of the measurements referenced in this blog and video, please click on your prefered box size below. A printable PDF will open in a new window when you click on a link.
Next, I need to make some clever cuts into some of the score lines. These are shown on the next page.