Building an under seat sub box

37584 Views 26 Replies 10 Participants Last post by 2k84by, Feb 21, 2015

Danzanzio

Discussion Starter · Apr 3, 2012

Well I have all the materials to build a sub box for under my rear bench seat in my 2005 ram. But my problem is that I need dimensions, does anybody happen to have dimensions of a sub box for two tens?

1 - 20 of 27 Posts

stef0703

· #2 · Apr 4, 2012

I'm wondering the same thing, looking into building a fiberglass box that will hold a ten inch sub and build an amp rack so I don't need to mount it under the driver seat......

DTECH

· #3 · Apr 4, 2012

fiberglass box would be best for getting the most air space and use a mdf top panel for the sub mounting...i have a mdf box that i just removed...theres just not enough air space with all the angles that the wood has to make...I can measure the box it self and post them up for you ...the box goes under the whole back seat..

Danzanzio

Discussion Starter · #4 · Apr 4, 2012 (Edited)

Well I did a couple google searches and found this thread to make a fiberglass box for two tens.
http://www.fiberglassforums.com/subwoofer-boxes/15271-under-seat-box-my-bros-dodge-ram-3.html

I think I might actually do this but instead of making the top out of fiberglass I'd use MDF(like DTECH said) because I have some lying around, which is why I wanted to build a box rather than buy one. Also it would be a lot easier than cutting a bunch of angles with wood.

Anybody have any input or tips for making a fiberglass bottom with MDF top? Angles and dimensions of the top MDF portion?

sporty11

· #5 · Apr 4, 2012 (Edited)

http://www.*************/f51/custom-fiberglass-sub-box-3235/

Found this on ram forum, i am seriously considering building one like this (as prefabbed ones can be up to $800, WTF????) but all the way across to mount 2 - Kicker CompVT's and hopefully enough room inbetween the subs to mount the amp between the seat and top of the box, otherwise its going under front seat.
I think this looks really good, clean and easy! hopefully fibreglassing isnt too hard :s lol

apparently link doesnt work on the Z.....

So try this.... ram forum/f51/custom-fiberglass-sub-box-3235/

stef0703

· #6 · Apr 5, 2012

This is gonna help a lot, just waiting for the nice weather to start this project......

Danzanzio

Discussion Starter · #7 · Apr 5, 2012

sporty11 said:
http://www.*************/f51/custom-fiberglass-sub-box-3235/

Found this on ram forum, i am seriously considering building one like this (as prefabbed ones can be up to $800, WTF????) but all the way across to mount 2 - Kicker CompVT's and hopefully enough room inbetween the subs to mount the amp between the seat and top of the box, otherwise its going under front seat.
I think this looks really good, clean and easy! hopefully fibreglassing isnt too hard :s lol

apparently link doesnt work on the Z.....

So try this.... ram forum/f51/custom-fiberglass-sub-box-3235/

Ya I was wanting to do one to fit both 10s and my amp but I have a large amp so I'd probably just keep it under the front seat. Anybody know have difficult fiberglassing is?

Danzanzio

Discussion Starter · #8 · Apr 5, 2012

Well my buddy works at handyman hardware so I get a nice discount for the resin and fiberglass. I'm going to tape it up and make a template for the MDF topper tomorrow. Hopefully I'll start fiberglassing Saturday. I'll definitely take plenty of pictures for everyone!

Danzanzio

Discussion Starter · #9 · Apr 11, 2012 (Edited)

Well I built a frame over the weekend and put down my first layer of fiberglass yesterday. I'll do another layer or two probably tomorrow.

All taped up and frame made:

First layer of fiberglass:

Took 1-29oz can of resin and 1.5 packs of fiberglass mat(package said covers 8 sq ft)

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sporty11

· #10 · Apr 12, 2012

^^ looking good man! keep up the pics and let us know any problems/tips you might have, cant wait to see finished product!

What is that silver material you used to line the bottom?

Danzanzio

Discussion Starter · #11 · Apr 12, 2012

sporty11 said:
^^ looking good man! keep up the pics and let us know any problems/tips you might have, cant wait to see finished product!

What is that silver material you used to line the bottom?

Will do! Should be finishing the fiberglass this weekend.
And the silver stuff is just some kind of tape my dad recommended. He had a lot of it and didn't want me using his blue painters tape lol.

voodoochi1d

· #12 · Apr 18, 2012

great pics, keep em coming, Im about to start mine, then Im selling my MTX Thunderform...

sporty11

· #13 · Apr 19, 2012

Will do! Should be finishing the fiberglass this weekend.
And the silver stuff is just some kind of tape my dad recommended. He had a lot of it and didn't want me using his blue painters tape lol.

Haha ya i bet that would have been alot of blue tape! gotta figure out what im gonna use yet..
Any update from the weekend? Pics perhaps!?

voodoochi1d

· #14 · Apr 22, 2012

today I used 4 rolls of masking tape (dollar store- cost me $40) and 3 rolls of aluminum foil.
I build my fiberglass enclosure so I can take it out.. Im think I could have netted another .25 cft doing like Danz did.
Urs looks great. plz add some more pics of your progress.

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sporty11

· #15 · Apr 23, 2012

voodoo and dan, are you guys separating each sub from the other? I dont recall from the last box i built whether its the best way to go, but it looks like your enclosures are going to be one continuous box?

Danzanzio

Discussion Starter · #16 · Apr 23, 2012

sporty11 said:
Haha ya i bet that would have been alot of blue tape! gotta figure out what im gonna use yet..
Any update from the weekend? Pics perhaps!?

I wish! It's been raining non stop here and the only place i have to do it is outside :smiledown:. Hopefully I'll be able to do some more soon. I need to do another layer and I made the mistake of not cutting part of the box frame so that it can lift out without hitting anything. I'll definitely try getting some progress done this week/weekend.

sporty11 said:
voodoo and dan, are you guys separating each sub from the other? I dont recall from the last box i built whether its the best way to go, but it looks like your enclosures are going to be one continuous box?

I plan on seperating them but I haven't figured out the easiest way yet lol.

Danzanzio

Discussion Starter · #17 · Apr 24, 2012

Well my project was a complete and utter failure lol. I tried taking out the box to finish it in the garage and ended up breaking it. I knew i could patch holes in fiberglass but i actually ended up breaking a lot if the frame which i wouldn't have been able to repair. A buddy of mine can get be a prefabed box for a lot cheaper than it would be to make another so I'm just going to buy that one lol. A tip for anyone that is going to build one would be to glue aluminum foil to the tape that you laid down and to grease the crap out of it with Vaseline.

Bordin

· #18 · Apr 24, 2012

Danzanzio said:
Well my project was a complete and utter failure lol. I tried taking out the box to finish it in the garage and ended up breaking it. I knew i could patch holes in fiberglass but i actually ended up breaking a lot if the frame which i wouldn't have been able to repair. A buddy of mine can get be a prefabed box for a lot cheaper than it would be to make another so I'm just going to buy that one lol. A tip for anyone that is going to build one would be to glue aluminum foil to the tape that you laid down and to grease the crap out of it with Vaseline.

02 and up rams!
The box was 185$, up here in northern Ontario you pay for everything. You could probably find something cheaper down there, but would like to see a picture of set up when you get that box.

Nice try with the project though man, it takes time and dedication to go this far and then just be crushed. Sucks, but you learnt for the future!

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Danzanzio

Discussion Starter · #19 · Apr 25, 2012

Bordin said:
02 and up rams!
The box was 185$, up here in northern Ontario you pay for everything. You could probably find something cheaper down there, but would like to see a picture of set up when you get that box.

Nice try with the project though man, it takes time and dedication to go this far and then just be crushed. Sucks, but you learnt for the future!

Thanks a lot man. It sure does suck lol.
Nice! Let me know how it sounds. I should be getting one like that.

sporty11

· #20 · Apr 25, 2012

Dan, Sorry to hear bro! i was really looking forward to seeing your completed box, sucks it ended up this way. Good advice on the Foil and Vaseline, i will still be attempting to fibreglass one myself as soon as temperatures stay warmer than 10 degrees here (and i can steal my cousins shop for the day!)
Bordin, thanks for letting everyone know they do have options when it comes to boxes!

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