You can buy 440 or 575 3-phase plugs and outlets, but they're super expensive and wouldn't make any sense for stationary equipment, or a home garage.

My home shop is 36X52 and has concrete floor, and three ten foot doors facing south, and one twelve foot door facing north, so one side you can drive straight through building, and out into the back pasture.
Was done that way to be able to drive tractor with loaded hay wagon through easily as they're a bear to back up!
It has a seperate man door, and tube lighting and 220outlets, and 110 outlets, bar fridge, but no bathroom,(That can be an issue!)
I extended the concrete ten feet out the front so I can do simple hood open stuff outside if I want on my daily drivers, and still pull a floor jack around without getting off onto the gravel driveway.
The ceiling is twelve feet, with a peak to sixteen feet, so a hoist is possible, but I don't have one.
Lots of bench space is important, nothing worse then working on the floor.
And it has a full mezzanine across the back wall for upper storage, and shallow shelves all the way down one side where the welder,cabinets, and one work bench is.
It has no heat in it, so I just dress warm, it isn't bad as long as you aren't paintng etc But some type of heat is in the future plans.
Definitely build as big as you can afford, if you go too small you won't be happy with it.
My building has to share space with the farm tractor ,mower,boat,etc.
And all the summer yard crap & toys that gets stored for the winter, so space for storage is important.

Last edited by andy46; 12/23/2010 6:49 AM.

1946 Chevy 1/2-Ton
In the Stovebolt Gallery
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Sometimes I forget where I left myself....