fosgate dvc 12's navigator

i was planning on making a custom sealed box for my fosgate 12's punch dvc 800w peak each

i need some feedback on how many sq ft per woofer do i need i also wanna know whats the best position to put them behind my third row seat (facing up or down) and should i make the speakers tilt just a bit?

and also can you tell what kind of wood you would recommend for me to use

First off, are you speaking of the Rockford Fosgate HE2's or just punch? Also an idea in a way to face them, face them down. Dynamat you NAV, especially where the subs are. Make sure that the subs are facing, umm I would say about 3 layers of dynamat. By facing then down towards the dynamat, you should get some good bass feed back. That is just my suggestion. And for the wood type to use, use 3/4 MDF wood. It may weigh a lot, but it is the best stuff out there for a box, well other than fiberglass.

-Team Xtreme