Uh....You designed djman37 a box. You were to tune it to 50 or 51hz IIRC...
I just looked at your specs on the box, and unless I am a complete moron you tuned the box to 40hz...???
So, The box is 42x36x23.25
taking off wood we are at 40.5x34.5x20.75
16.77 gross
sub disp=.95 for the 4 subs
port disp =.69 for 4.75x32.5x7.75
Total 15.16 net cu.ft.
Total tuning is 40.4hz
Not exactly what he asked for and not really correct in any way. Not to mention that for $15 I would expect to see better pics and an actual breakdown of the cuts.
How about a refund for a wrong plan?
Someone check my math...
EDIT: Pic was so poor that I missed the double baffle in the mesurements, still shouldnt be anywhere near 50hz