quick box questions

[LUV2BHATED]

:wallbash: i took my measurements of my trunk and this is what i got
top & bottom 14x36
front, back and sides 16x36
what size would i make my port?

[LUV2BHATED]

2 12 in l7's i never did a ported box and im about to go get the wood so i just need a quick estamate so i dont got to buy a lot of extra wood and "wing" it