Hey Greg THANKS for taking the time to check out my build and Thanks for the compliments I will answer your questions in order; the fire box is 30" w x 30" d x 24" t : the vents are 4.5" t x 10" w the pit doors are 28" w x 22" t the fire box door is 18" t x 22" w all my doors are framed with 1.25" x 3/16" flat stock. I used the pit calculator for my build; I would post a link to it but my big computer that I have it saved on died, if you use the search feature at the top of the page; and type in (Pit Calculator) you should be able to find it no prob. it is in a microsoft excel format.
if you use the pit calculator it gives the minimum values to function I went a little bigger than what was called for with the pit calculator as it is easier to slow down things down rather than trying to speed things up
Once again I thank you for checking out my build in progress if you have anymore questions please ask away and I will do my best to help you out,
I hope to have this at least functional by the middle of next week ( gotta make it to the SWAP CABBAGE Festival on the 25th ) man I'd better get busy LOL ; I got the charcoal basket all fabbed and welded up; I still gotta finish up the reverse plate and fab up the grates I hope to have new pics up soon.