Equation?

[bigwheel15 10+ year member]

LxWxH/1728

Yes, airspace=cubic feet

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[negativezeroz 5,000+ posts]

HxWxD then take that divide by 1728 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

12x12x12 = 1728/1728 = 1cf //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

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

 

[bonesninja 5,000+ posts]

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

 

[negativezeroz 5,000+ posts]

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.

 

[MikeyB 5,000+ posts]

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

 

[ThatDude 10+ year member]

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

 

[96civ 10+ year member]

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