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<blockquote data-quote="Trixter" data-source="post: 354072" data-attributes="member: 542668">L x W x H / 1728 = Total volume - when you measure this use internal dimensions to get the internal volume. If your using 3/4 wood, then just measure the outside of the box and subtract 1.5 from L, H, and W. (.75+.75=1.5....get it..)To find the volume of an angled box you need to divide it into two parts first. You will end up with a square and a triangle. Take the box below. The top is 5&quot;. Subtract the top from the bottom and you get 4. the bottom of thebox has two numbers now, 5 and 4. Take the 5 and you get a box that is 5&quot; wide and 13&quot; tall. now do you L x H x W / 1728 to get the volume of this one. Now the formula to find the volume of a triangle is L x W x H / 2 / 1728. So 4&quot; wide and 13&quot; tall (and whatever long) and divide it in half and then divide it 1728.If the box below is 15&quot; long then...Box A: 5 x 13 x 15 / 1728 = .56cu&#039;Box B: 4 x 13 x 15 / 2 / 1728 = .23cu&#039;Box A + Box B = .79cu&#039;Hope this helps.</blockquote>

[QUOTE="Trixter, post: 354072, member: 542668"] L x W x H / 1728 = Total volume - when you measure this use internal dimensions to get the internal volume. If your using 3/4 wood, then just measure the outside of the box and subtract 1.5 from L, H, and W. (.75+.75=1.5....get it..) To find the volume of an angled box you need to divide it into two parts first. You will end up with a square and a triangle. Take the box below. The top is 5". Subtract the top from the bottom and you get 4. the bottom of thebox has two numbers now, 5 and 4. Take the 5 and you get a box that is 5" wide and 13" tall. now do you L x H x W / 1728 to get the volume of this one. Now the formula to find the volume of a triangle is L x W x H / 2 / 1728. So 4" wide and 13" tall (and whatever long) and divide it in half and then divide it 1728. If the box below is 15" long then... Box A: 5 x 13 x 15 / 1728 = .56cu' Box B: 4 x 13 x 15 / 2 / 1728 = .23cu' Box A + Box B = .79cu' Hope this helps. [/QUOTE]

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