Cubic foot of a box?

[laser1984]

How do u figure the inside cubic feet of a 12x12 box?...

That is 3/4 thick with carpet

[ultimate157]

Well, you need a 3rd dimension.

those two would be internal dimensions of 11.25 x 11.25 ... whats the third dimension ?

[mtlhead]

12x12x??

Volume = HxWxL

we need one more dimension

[laser1984]

Wht would be the 3rd?


Spkr. Displacement?

[mtlhead]

Height, width, length

[mtlhead]

have u taken math before??

Volume = Height x Width x Length

[Mitch86]

Length x width x height minus wood thickness divided by 1728 = how many cubes you have internally.

[laser1984]

Height 12 inch
Width 12 inch
Length 12 inch

[mtlhead]

i get .67, anyone else?

[Mitch86]

That should be correct.

But, I think it's better that the original poster learns to do this himself.

[ultimate157]

10.5 ^3 = 1157 / 1728 .669 cubic feet.

I always ****ing forget to double the outside walls.

[mtlhead]

true so heres what i did:

12x12x12 is your outside dimensions

because you have 3/4" wood, you need to acount for that, so subtract 1.5" from each side and thats the internals

now multiply those and divide by 1728, how many cubic inches are in a cubic foot.

that gets u your volume

[geowick07]

instead of editing, i will just say i am an idiot! lol, same as ultimate. double walls

[mtlhead]

11.25 ^ 3 = 1423 / 1728 = .8239 before woofer displacement.

dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it :eyebrow:

[Mitch86]

dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it :eyebrow:

That's what I was thinking also.

[ultimate157]

dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it :eyebrow:

Edited. I'm very good at math however I ALWAYS make stupid, easy mistakes.

[mtlhead]

lol he edited his post

good thing im here right ultimate? lol j/k

[Mitch86]

Haha, we probably just confused the hell of this guy.

[mtlhead]

lol probably, oh well, he'll get it

off to class

[ultimate157]

lol probably, oh well, he'll get it

off to class

Same here ... History is so ******* boring.

[Mitch86]

Anyway, Length x height x width minus wood thickness (which is 1.5 for 2 pieces.) divided by 1728 equals your internal volume.

[geowick07]

To the OP, this is your final, correct answer. Since we seem to not be feelin the math today, lol!

10.5 x 10.5 x 10.5 = 1157.625 / 1728 = 0.67

[laser1984]

Next ?

Is that to small of a box for a Cerwin Vega Vmax 10 inch sub

I need a small box cause its in a boat

[IamDeMan]

Next ?

Is that to small of a box for a Cerwin Vega Vmax 10 inch sub

I need a small box cause its in a boat
Most modern 10" car audio subs will work favorably in a sealed enclosure of that size.

[mtlhead]

should be fine