they are:
4.5" wide, the width of the box
3/8" tall
5.5" deep
with a spacer in the middle that's 1" wide, ufonken style
on the bottom of the front face of the box
please be aware that dave mentioned that having the ports too close to the driver may not be a good thing.
maybe you'd want to mock it up in cardboard first, in order to get a rough idea about it before wasting your time energy and resources on a real wood box.
happy building and listening!
