# Sub Box

**URL:** <https://forums.speedlife.net/t/sub-box/188847>\
**Category:** PittSpeed Automotive\
**Created:** [March 27, 2007, 7:03am UTC](https://forums.speedlife.net/t/sub-box/188847 "2007-03-27T07:03:54Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![S10Blazed\_Si](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s10blazed_si/32/5983_2.png) [@S10Blazed\_Si](https://forums.speedlife.net/u/S10Blazed_Si)\
**Post date:** [March 27, 2007, 11:58am UTC](https://forums.speedlife.net/t/sub-box/188847/4 "2007-03-27T11:58:28Z")

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> [@Rudy or Hilary?](https://forums.speedlife.net/t/rudy-or-hilary/28941/43):
>
> yeah, make 3 round holes in it, and remember LxWxH=sq. in. divid by 1728 to = Cu.Ft. 🙂

Unless its not a square! For triangles use [(LxWxH)/1728]/2

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