as stated....i have the layout, but not sure of hoe tall i need to make the box, is that based on the driver?....this may sound stupid....forgive me ???

Yep- its hight is 13.5 for 10s and 15.5 for 12s.

Well J_rock (and 60 and Gex and Jet and and and) well most of them know more about them Wo´s than me, Dont´let the post number fool you, that number just means I´ve blabbed more )  

It may take come time but one of us will answer. I sometimes miss a thread but J-rock is dead on as usual.
A large part of information is posted on the decware page. as far as mods thats stuff you have to find it here where the bass heads hangout.
The inside dimesions and ratios I feel are more important than the hieght. also your CC chamber should not be expanded you can slide the baffle ( part the sub is on) into the CC chamber this is the ported chamber. 60 has mentioned adding blocks inside the sealed chamber to decrease volume because you do not want to move the baffle back into the sealed chamber.
The design is best left alone if using a 10 or a 12 although lots of us play around.
Improving on steves design is not a improvement but a trade off of differant  characteristics.
you have likely read about using a 4th order model and somewhere in these thread are the inside stock volume that you can work from.
some have dfferant ideas and many times a second opinion is a good thing.. when all of us agree you got something worth doing..

Blah blah blah blah  

There is a spell checker but who has time for that.

[quote author=Rap  link=1159553597/0#7 date=1159632607]Don´t listen to that noob [/quote]
LOL!
listen to the Rap! He's right!!  ;D

Unless you got tons of cash or extreme amounts of time- yes, it probably is.

Unfortunately "plugging it into the wall" is not allowed lol  :-/

SPL is a sport that I was around to help see come of age. Money makes things easier, but it has been ingenuity that led to the biggest headlines in the sport over the years. Alma Gates was a great example of pouring money at a sport. There was a certain 4 runner out there with only two subs and amps that was tearing things up at the same time though.
lets see:
64 subs, amps, batteries, with steel walls and hydraulic closure devices .........$10gazillion bucks

2 subs, 2 amps, mdf and a lot of work.........<$10,000.00

Bragging rights........Priceless

[quote author=irupp33  link=1159553597/0#13 date=1160095904]is 15.5 in height of the internal walls or over all height? [/quote]

internal