cubic ft.

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Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=13020
Printed Date: July 22, 2025 at 9:13 PM

Topic: cubic ft.

Posted By: daslabb
Subject: cubic ft.
Date Posted: May 01, 2003 at 10:26 AM

when box building how do u measure cubic ft.

Replies:

Posted By: DjIQ
Date Posted: May 02, 2003 at 2:28 PM

this ones kinda complicated its (L)x(W)x(H) but you have to convert the inches to decimal values ie, 3.0" = 0.25' . Ex: 12"x12"x12" would be 1x1x1 and would be equal to 3 cubic feet

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Posted By: BigMac
Date Posted: May 03, 2003 at 1:21 PM

I'm afraid that DjIQ hasn't got his sums correct when he says that 1*1*1 = 3 cubic feet, cos 1*1*1 = 1 cubic foot. Rather than converting each measurement into decimal before multiplying, I find it much easier to multiply width * height * length in inches and then divide the result by 1728. The calculator then does the work for you.

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BigMacGlasgow

Posted By: dohcser
Date Posted: May 08, 2003 at 8:43 AM

BigMac wrote:

I'm afraid that DjIQ hasn't got his sums correct when he says that 1*1*1 = 3 cubic feet, cos 1*1*1 = 1 cubic foot. Rather than converting each measurement into decimal before multiplying, I find it much easier to multiply width * height * length in inches and then divide the result by 1728. The calculator then does the work for you.

BigMac, is correct. 1x1x1 is ft^3. Depending on the shape of the box you are makine there are different formulas to help you on determining the internal volume!