[THEFERMANATOR]

Was just going over my numbers again on the calculator, and it looks like I'm pretty close for most all of it. My firebox will be just slightly oversized at 105%, but most say to go 103-108% on the sizing(I should have probably undershot considering my design will utilize more of the heat). Planning on an 18.5"X3" opening out of the firebox for 55 cubic inches of volume, and the calculator says I need 52 but with the 180 degree change in direction I want to be al ittle over. My calculations come out to 58 cubic inches of volume for the reverse flow baffle chamber so it should flow planty and not bottle neck there. And I'm planning on a 30" tall 4" ID stack which is a bit taller than what the calculator calls for, but I want to keep the smoke away from me as best as possible. Hopefully this thing works out good as all the math says it should be sized right, and I will have a good 36" long, 23.5" wide, X 12" tall half circle cooking chamber to work with(may drop the cooking area down a tad deeper, will finalize my decision on that shortly.

Link to BBQ Pit Calculator