check this

[budahbuddy803 10+ year member]

Box for 2 3.5" pioneer ts-g1041r it will be a sealed box.

front and back: 10"x8"

top and bottom: 10"x9"

sides: 10"x8"

with 1/2" mdf does this come out to .32813cuft?

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[Trixter 10+ year member]

i get 0.291666....

if your using outside measurements and 1/2", then subtract 1" from each dimension.