Auto cad sub enclosure

[Bluedevil]

This is a rough auto cad sub enclosure done by a close friend for my 2 12s...Tell me what you think about this design....p.s. numbers aren't exact there off by a little but you get the picture...Dims changed to Height 18in,Width 31in,Depth 17in...

http://i.imgur.com/6OfZ6.png

[OrionStang]

I think your gonna need more port area. But the design work looks good.

[Bluedevil]

I think your gonna need more port area. But the design work looks good.

How much more do you think?

My subs are Kenwood eXcelon KFC-XW1222D subs if this helps...