We built this box cutting all the pieces to size at once ... On the 11-3⁄4" sides, make a mark with a sharp pencil at 4" on both sides, and use a combination square to draw a 1⁄2" line.

This tzedakah box made from an up-cycled record album ... you want the knife to only make a mark without cutting into the paper. Following the red lines in the template, score the cardboard ...