cubic inch in a multi angle sub box?

:banghead: how would u determine how much space u have in a custom multi angle box. this has been giving my problems since its not like a normal box which is just a square box. since i have to determine it with the curves and angles and all that good junk. so does anyone happen to know a way to determine this out so i dont make it 2 big or 2 small for the subs?
thanks
terry joe

LxWxH..? If you post dimensions and some sort of sketch or picture I can help you out.

ok well i will draw up something this afternoon got to work 8-5 today laters

the easy way is to fill it with like styrofoam peanuts or something, then put them in a carboard box to figure equivalent volume.

thats a good idea thanks sorry i havent drew up a sketch 4 u i been working weekends also :confused: