1. ## Re: Equation?

LxWxH/1728

Yes, airspace=cubic feet

2. ## Re: Equation?

HxWxD then take that divide by 1728

12x12x12 = 1728/1728 = 1cf

edit: **** it bigwheel you beat me lol

3. ## Re: Equation?

(l)(w)(h)=airspace if you use inches divide your answer by 1728 to get cubic feet

4. ## Re: Equation?

All he said was if you are measuring in inches divide by 1728 to get cf.

Other measurements convert them to inches then you can divide to get 1728.

5. ## Re: Equation?

Make sure you account for wood thickness, so use internal dimensions.

6. ## Re: Equation?

I was gonna ask where the 1728 came from, but it seems that 1728 cubic inches is equal to a cubic foot?

7. ## Re: Equation?

I was gonna ask where the 1728 came from, but it seems that 1728 cubic inches is equal to a cubic foot?
Yes 1728 in^3 = 1 ft^3 because..
there are 12" in a foot obviously, and so 12" * 12" * 12" = 1' * 1' * 1' = 1'^3

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