firing direction for subs

ill be starting the building some time this week, my fiancee is in the hospitol right now, her cervix is 3 cm dialated already and shes only 33 weeks so far. so theyr holding her in there till prolly wednesday and then deliver it because then shell be 34 weeks. so things been kinda hectic here lately lol

but ill be definately posting up pics throughout the build and then of finish product :D thanks for all the help stevdart.

heres some other boxes ive built.....

Keep in mind that the outside measurements include the thickness of the wood.  If you start with a 16 1/2" base, you would then add a front and back 3" wall to make the total base height 3 3/4".  If you then cut a 14 7/8" front (slant) baffle and cut the edges at 45 degree angles....the box dimensions are done.  It would just be a matter of fitting a back slant with the angled edges cut as I showed, and then filling in the top space.  And then attaching the side walls.  (Don't forget to put in the center baffle.)

But, on the other hand, if the front and rear 3 3/4" walls are made to extend to the floor, the bottom piece will indeed be about 15" because it will fit in between the walls.

As long as both boxes have the same size/angle front baffle and the same base height as well as same total height, you can make up differences anywhere else.  And of course the volumes should be close to correct.  If you end up with harmony in the overall pair of boxes and the subs have the same net volume of air....it will be good.