PDA

View Full Version : Building a sub box



Hades2004
05-06-2005, 01:38 AM
I'm going to be building my sub box for my 2 12in RE SX's. This thing JUST fits in the trunk of my car lol. The box is going to be 4ft@30Hz. I'm hoping to pick up my MDF tomorrow. For how big the box is going to be, i'm only going be paying $50 for all the MDF. It's 3/4in thick. So what kinda stuff will I need to use to put it together? Glue? Screws?

Beat_Dominator
05-06-2005, 01:42 AM
Screws for sure, a bit to predrill the holes for the screws. Probably glue, unless you're like me and use like 60,000 screws. And once again, glue/silicone/caulk to run over the seams after it's built.

Hades2004
05-06-2005, 01:44 AM
Is there any specific type of glue to use? And length of screws?

Beat_Dominator
05-06-2005, 01:46 AM
Any wood glue should do. Screw size can be tough, you want about 1.5" length, no drywall screws either, there are screws for wood, ask a guy at Home Depot or where ever, they'll hook you up.

Hades2004
05-06-2005, 01:48 AM
Sweet. Thanks for the help. Wish me luck in building this box. *i'll probably screw something up lol*

Beat_Dominator
05-06-2005, 01:49 AM
Heh, it's not too hard, "measure twice, cut once" and take some pics for us!

Hades2004
05-06-2005, 01:51 AM
I will. I'll be buying this stuff tomorrow then.

LightningStryk7
05-06-2005, 02:15 AM
a Nail gun can work fine. But yeah wood glue definately. Why 50 for wood? is it expensive where u at? for me 1 sheet is 22 bux and I just finished a 3 cube box tuned to 33 hz with about 1/3 a sheet left.

SPL140.2
05-06-2005, 04:36 AM
Screw size can be tough, you want about 1.5" length, no drywall screws either, there are screws for wood
Why not????? :laugh:
I use 1 5/8" coarse thread sheetrock screws, doesnt matter if you use screws or nails, glue is the key :veryhapp: I personally like titebond wood glue and dont forget the silicone :)

jellyfish420
05-06-2005, 09:31 AM
screws NO MORE than every 4 inches

closer together than that and your likely to split the wood.

Goldtaz1
05-06-2005, 09:46 AM
Screws take forever ...


I'm with JMAC on this one, get an air nailer and a compressor. You will most likely cut an hour or two off of the job.

Sound Gorillaz
05-06-2005, 11:09 AM
screw the silicone. I normally get a small 1 litre of resin from CT and resin the inside of the box. That way it is air tight.

Hades2004
05-06-2005, 01:11 PM
a Nail gun can work fine. But yeah wood glue definately. Why 50 for wood? is it expensive where u at? for me 1 sheet is 22 bux and I just finished a 3 cube box tuned to 33 hz with about 1/3 a sheet left.

This is a BIG box. I need 2 sheets of 36inx23.5in for the top and bottom. Like I said before, this box will JUST fit in my trunk. And plus $50 in Canadian Price. Thats probably about $40 US Price. And i'll be getting them to cut all the pieces out that I need from the wood I buy cause I had an incident before using power tools before. And then they'll be shipping the stuff to my house after they are done. So thats all free, I just gotta pay for the wood. But anyways, i'm going to go get my wood now lol.

Exaran
05-06-2005, 01:50 PM
I like using Liquid Nails Heavy Duty Construction adhesive and 1.5" drywall screws (dont forget to predrill). The screws pull everything together nice, and the Liquidnails lets you get your bonding and your sealing done in one step.... just use a healthy ammount, and when the stuff squirts out the sides, smooth it down with your finger to seal everything up nice :)

amedeuce
05-06-2005, 02:12 PM
I like using Liquid Nails Heavy Duty Construction adhesive and 1.5" drywall screws (dont forget to predrill). The screws pull everything together nice, and the Liquidnails lets you get your bonding and your sealing done in one step.... just use a healthy ammount, and when the stuff squirts out the sides, smooth it down with your finger to seal everything up nice :)
Wood glue is better, It makes a chemical bond with mdf, Liquid nails=crap

amedeuce
05-06-2005, 02:14 PM
Wood glue is better, It makes a chemical bond with mdf, Liquid nails=crap
Not just mdf I should add all woods. Wood glue is superior.

THUNDERBIRD
05-06-2005, 02:49 PM
i use gorilla glue. but wear some gloves when u use it kuz that stuff doesnt like to come off ur hands

Beat_Dominator
05-06-2005, 05:37 PM
screws NO MORE than every 4 inches

closer together than that and your likely to split the wood.


Wimp! Of course my box was only .75cu.ft. but I did about every 2" and predrilled all of em. Didn't need glue after that :p:

Raven
05-06-2005, 06:17 PM
There was a discussion about this before. The glue is actually doing more work than screws are. I can also tell you from experience ripping a 3/4 MDF box apart myself that the MDF will give out before Liquid Nails will. I'm sure a chemical bond is great, but if you're going to tell me that LN alone won't do it, I won't believe you.

TL-Focal25
05-17-2005, 12:30 AM
i have a question. You will need 2 different kinds of glue to seal the box correct? One is between the woods, and the silicon is for the outside right (outside meaning Silicon should be at the corner of the L)?

Buckshot
05-17-2005, 10:55 AM
i have a question. You will need 2 different kinds of glue to seal the box correct? One is between the woods, and the silicon is for the outside right (outside meaning Silicon should be at the corner of the L)?

This is sort of correct...

You glue all your pieces together, as well as screw or nail (optional). Thats your first kind of glue. (Wood glue).

Then once the box is mostly constructed, you can 'seal' it with silicone. Usually I try to put the top on last, so I can silicone the INSIDE of the seems. It's alot less messy that way. So on the inside of the L silicone.

Sound Gorillaz
05-17-2005, 11:10 AM
Or you could just get a small container of resin and resin the inside of your box and it is sealed air tight

WheresTheButta
05-17-2005, 11:28 AM
I dont know if this is O/T.... but it seems to fit.
My jigsaw is screwy and doesnt cut straight, so I have a hard time cutting the mounting hole....... does anyone know of a store that will cut a nice circle for me? I need it to make a mounting ring for when I fiberglass.... dont want it to be messy so I want it done right. (tried lowes, home depot, neither would do it)

LightningStryk7
05-17-2005, 07:24 PM
u can use a router if you got 1, u can get a perfect circle with taht.