How do you calculate box volume?

[Deamonicus 10+ year member]

I made a couple of custom boxes molded in my truck. I have the subs already installed. Is there anyway to estimate volume without taking them out? I've already tried to measure the WxLxH but they are pretty irregular. I thought maybe there would be a way to gestimate the volume by comparing the sub to the overall box dimensions. Anybody?

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[LightningStryk7 10+ year member]

fiber glassed box?

If so you can use water or packing peanuts. I forget how many galons are in a cubic foot, but somone probably does.

 

[TPABlazer 10+ year member]

1 cubic foot is 7.48 US gallons

 

[SPL140.2 5,000+ posts]

Ive seen people use rice //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Deamonicus 10+ year member]

D@mn that would be alot of rice!!! Yeah I've heard all those methods before. I just didn't want to have to take the sub out.

 

[SPL140.2 5,000+ posts]

D@mn that would be alot of rice!!! Yeah I've heard all those methods before. I just didn't want to have to take the sub out.

Rice is also cheaper and more accurate //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[aquamoe21 10+ year member]

how do you use rice to figure the volume of the box?

 

[LightningStryk7 10+ year member]

you use it like water..... and put in so many gallons until it fills it up then you can calculate how many cubic feet you got...