this box's finished dimension are 3'x3.5"x,75".
Cut your paper to 81/4" x 5"
If you use a directional pattern, make sure the top is pointing left <<<
score on the long side at:
3", 3 3/4", 6 3/4"and 7 1/2"
Score on the short side at: 3/4"and 4 1/4"
cut and remove bits like in the drawing.
Glue the bottom first, make sure the front folds over the other flaps, so you get a smooth finish.
Then fold the lid over the box and glue it on the little tabs, you might need to shorten a little.