I'm building a 38 x 50 "Miracle Truss" steel / wood hybrid structure. I'd recommend them highly. It's a little more expensive than a true "steel building" but it uses standard insulation instead of the expensive thin stuff. and the wood purlins/girts (roof and wall lumber) enable to easily build interior walls and attach drywall.
Something I've learned since starting my "Garage-Mahal" project is that a bathroom & sink might be more trouble than it's worth!
In communist republic of Southern California if I added a crapper & sink, the entire garage/workshop (1,450 sqft) would now be considered "livable space". In other words, I've just increased my home by that much sqft. My property taxes would increase 40% and the county would have me go thru flaming hoops with health standards, septic upgrades, etc, etc...
Next. Since I have an office as one of the rooms, I will run speaker wire and tv cable to the other rooms. It wil be great to have tunes & tv when I work. With a "RF blaster" remote, I can control the tv & stereo (volumes, channels) from any room.
Next. Im going to use UcoatIT for floor coating. I've heard great reviews all around.
Next. PLENTY OF 100v and 220v power with 300 amp service. I know it's overkill, but I've got a mill, lathe, CNC mill, plasma, MIG, etc... Remember that 220v uses less amps and is more efficient. (I've been told)
my 2c
REFLEXX
