port sizer ?

[Coolwazabi]

for a 6 ft3 box how much port should it have?

[mr_kebo]

~100sqin

[andym85]

12"-15" per cubic foot is the general rule...so 72"-90"...wouldnt hurt to go a tad bigger though i suppose

[Texas Tech]

thanks for that rule of thumb, ive never seen that before