Box Indestructable

[JSwongerAA]

still stuck in between mdf double stacked and birch.

Its most likely gonna boil down to price Vs. weigh. 3/4" MDF is about a 100lbs and $29 a sheet. Birch is almost twice the price and just over half the weight. You gotta decide which is right for you.

[zfrerichs]

if you are trying to decide double mdf or a single piece of birch there is no question there the mdf will be stronger

[tripleb45]

yeah that is what i am leading toward

mdf birch

IIII III

[JSwongerAA]

if you are trying to decide double mdf or a single piece of birch there is no question there the mdf will be stronger

x2

[JSwongerAA]

I have been looking on this site and got a few ideas to make an indestructible. My ideas are MDF, Resin, Allthread, right angle bars, and now I am looking for more ideas I have 2 Fi BTL 18" subs fully loaded. I am thinking of going with 4 within a few months.

I think we all got caught up in theory and forgot what he's going to be doing. ^ Be sure to Double layer everything and check out the build for Steve's current box. The only difference that would make it better would be doing Allthread where he has 2x4's just because it would not take up as much air space as using 2x's.

[tripleb45]

thats what I was thinking and I would go aluminum before wood in this situation.

[dsmdan]

you will have a much stronger box if you use birch and not mdf

I will never use mdf again

double layer where you can

resin and matting (resin alone does not make box stronger)

then test it if it has any flex use wooden dowels to brace it

I havn't needed bracing in 4 years because of using birch and double layers

Is birch plywood readily available at lowes or home depot or lumber yards? If so is how does is compare in pricing to MDF?

EDIT:: Nevermind, I read the thread and see the answer, thanks!

[P4killer_]

Id like to note that adding bracing either allthread or dowels, in all directions (front to back, side to side, and top to bottom) and have your bracing as close to intersecting as possible will result in a much stronger result than simply doubling all the walls.

You pretty much read that on alot of box building guides etc etc.

[Boon]

Indestructable huh... some guys I know ran over their old SS1-2 car with a Centurion tank, shit went flat like the enormous wall wasn't even in there

Got a vid somewhere...

Ok can't find vid but pics...

[kingsuv]

Is birch plywood readily available at lowes or home depot or lumber yards? If so is how does is compare in pricing to MDF?

EDIT:: Nevermind, I read the thread and see the answer, thanks!

The birch you get from Lowes is ok but the Home depot is a veneer and the inside is just crap filler wood. Both still don't stack up to a real lumber yard.