"I think he's means it would only work on the inside cut, but not on a wider cut like a flush mount cut."
we are all on the same page. my point was simply that there is no flush mount cut out on the marty sub! :-)
sorry to hear about that marty. just a temporary set back i'm sure.
since you have the panels, you can just dry fit it to see how it goes together.
for the marty sub we were talking about in post #18 http://www.avsforum.com/t/1489541/large-ported-dayton-ho18s#post_23711347
"The sides rest on top the bottom, then the top rest on top the sides."
"The rear panel rest on top the bottom panel with the top panel rest on top the rear panel, and the rear panel fits in between the sides, right?"
"Then the front baffle rest inbetween the sides, with the top panel resting on top of the front baffle"
"and the front baffle rest on top the bottom panel."
almost. the front baffle rests on top of the slot panel. the slot panel sits on top of the slot braces. the slot braces sit on top of the bottom panel, but i'm sure that is what you meant.