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    laser1984's Avatar
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    Cubic foot of a box?

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

    That is 3/4 thick with carpet







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    Re: Cubic foot of a box?

    Well, you need a 3rd dimension.

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



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    Re: Cubic foot of a box?

    12x12x??

    Volume = HxWxL

    we need one more dimension




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    Re: Cubic foot of a box?

    Wht would be the 3rd?


    Spkr. Displacement?




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    Re: Cubic foot of a box?

    Height, width, length




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    Re: Cubic foot of a box?

    have u taken math before??

    Volume = Height x Width x Length




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    Re: Cubic foot of a box?

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



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    Re: Cubic foot of a box?

    Height 12 inch
    Width 12 inch
    Length 12 inch




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    Re: Cubic foot of a box?

    i get .67, anyone else?




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    Re: Cubic foot of a box?

    That should be correct.

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



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    Re: Cubic foot of a box?

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

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



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    Re: Cubic foot of a box?

    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




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    Re: Cubic foot of a box?

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




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    Re: Cubic foot of a box?

    Quote Originally Posted by ultimate157 View Post
    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




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    Re: Cubic foot of a box?

    Quote Originally Posted by mtlhead View Post
    dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it
    That's what I was thinking also.



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