help with bass box sizes?

[new steve]

hi all,

i have just purchased a polk GNX124 12" sub.

i would like to build the single ported box with a cubic foot of 1.75 as per the specs on this site.

the problem I have is the size of my box is goverened by where it needs to go. the box will need to be (external sizes) 16" high by 10" deep; assuming 1" thick MDF construction how wide should it have to be to get 1.75 cubic feet? (the width is the variable as I have plently of space there!)

thanks in advance if anyone can help!

[neomagus00]

29" wide... ensure that the 1.75 internal includes the sub's displacement and the displacement of the vent(s). also note that this measurement does not include bracing.