Hole cutout diameter will be supplied when you buy the sub in the owners manual. It will also tell you how much airspace the sub required.

I always would use liquid nails on the joints, then screws (1.5"-2" screw). pre-drill first so the wood doesnt split. then i would run silicon around all the corners on the inside also when finished.

 

^well put. I couldn't have said it better myself. If I were to add to it, maybe throw a little bracing in there if you're feeling adventurous.

would it be better to go ported or sealed for a shallow? If ported, what would i go about doing? Just cuttin a hole somewheres? lol

If this is your first box, I would just go sealed. It isn't just "cut a hole in your box and go". Just to clarify, it's a "tube", not a "hole". That hole has a depth to it. Unless you want to bust out the calculator and do a little math, I'd just build a simple sealed box. Even if you were willing to do a little math (it really isn't hard, I'm probably making it sound more complicated than it really is), you probably don't know exactly what you're looking for (no offense).

shallows subs i believe should always be sealed. i no i read it somewhere on here. i just built a box its kinda crappy but perfectly sealed

I would have to disagree with this. I wouldn't say that ALL "shallow mount" subs want a sealed enclosure, but they probably don't perform as well as a "regular mount" (I hate those terms) sub in a similar ported enclosure. Just gotta model it and see.

 

Size for the hole is dependent on measurement at the frame. If you look in the owners manual it should give you this measurement or measure it after you get it.


Coarse Drywall screws 1.5"
Silicone Caulking
and
Wood Glue



http://www.crutchfield.com/S-OOJOEHSiTlW/learn/learningcenter/car/subwoofers/box_building.html

 

there's plenty of threads on here that people have given step by step guides on how to build a box.

 

would it be better to go ported or sealed for a shallow? If ported, what would i go about doing? Just cuttin a hole somewheres? lol

 

shallows subs i believe should always be sealed. i no i read it somewhere on here. i just built a box its kinda crappy but perfectly sealed

 

sorry thats why i said i believe sorry. my shallow says it should be sealed sorry for misinforming thanks for the correction brich

 

No, that's fine. I was sure to be sincere with my correction. No biggie.

 

building a shallow mount box for 2 12 inch kickers.....any tips before i start i know i should use silicon on the inside wood glue pre drill etc...just wanted to know if anyone had run into some type of problem they werent expecting