Dyver, I have the 2Ton (24k) Mitsubishi unit in my 440 sqft garage. I have 9.5' ceilings and the garage is brick, framing, and sheetrock with no insulation period. I am in central Texas and even in the summer it can maintain icebox temps with ease. I think the general rule of thumb for a well...
I've always drooled over this garage in Modulines gallery, but have never seen anything about it elsewhere.
Anyone come across this one in their online garage ventures?
I definitely wasn't expecting it to be that bad. About a year ago I had a shower stall end up the same way and I made him tear it all back out before I paid. There's no excuse for that kind of sloppy work.
Like Bill said, if he is a real pro, he won't let this small of a job tarnish his...
I would try to make the sections at least 8x8, but since the ground is well prepared it shouldn't be an issue.
Just make sure you keep the grade consistent so that you don't have water runoff issues.