How do you build a wall?

How would i go about building a wall in my 96 s-10 blazer without messing up the headliner. It will be for 4 dd audio 9500 15's with 2 usa 6000's pushing them.  i have never seen anyone do it so thats why i am asking, thanks 1996 Blazer, 4 HX2 12's, 2 RF 800a2's, 4 6.5 MB Quarts, 1 RF 400a4, Pioneer 8400, 220 amp alternator, 0 gage main and 2 gage amp power wire. 149.1db

I am wanting to put a wall 10" behind the front seats and another one 1ft or so in front of the tailgate to house 4 dd audio 9500 15's with 2 usa 6000's pushing them. this will use the cargo and back seat area as the enclosure. anyone got any idea's on how best to build the walls. keep in mind the that there will be plenty of bracing that will have to be done.1996 Blazer, 4 HX2 12's, 2 RF 800a2's, 4 6.5 MB Quarts, 1 RF 400a4, Pioneer 8400, 220 amp alternator, 0 gage main and 2 gage amp power wire. 149.1db

I was going to say "With bricks". Why would you need that much airspace for four 15's? I would estimate that being at least 20 cubic feet. If all you want is looks then do it the way maxst said and build four individual boxes and secure them together and build a cover panel to hide the lines. If you want something functional and not blocking your view then raise the floor.Certified Security Specialist

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i don't care about blocking the rear view i have side mirrors for that. Digital Designs said that 10cuf per 15 and that i should use the largest port that i can to maximize the back wave. this is for spl and looks. so thats why i am only going to use 4 15's if it where for sq then things might be different and i would be using different subs as well. i went to the local shops and i got blew off, because i would be there compitition at the local shows and so they wouldn't help me out. this is no cheap adventure here i am well on my why to spending roughly $18,000 for this system. i just need a little help the wall design. 1996 Blazer, 4 HX2 12's, 2 RF 800a2's, 4 6.5 MB Quarts, 1 RF 400a4, Pioneer 8400, 220 amp alternator, 0 gage main and 2 gage amp power wire. 149.1db