My shop is in the basement of an old house that probably started as a miner's cabin. The room is about 23 X 15 but I use one end of the space for a tread mill and a weight machine (where are my priorities??) My table saw, a 10 yr. old Ryobi BT3000, is fixed, due to the rail extensions and outfeed table but my other power tools are on mobile bases so I can move them out to the work space and hook up to my dust collector. I heard another wood worker call himself "dances with tools" and that pretty much sums up what I do when I'm dimensioning lumber for a project. Another aspect of my shop is the LOW ceiling, about 6' 7." I'm 6' 4" so I just fit, except for the exposed beam which divides the space. I've had to cover the edges of that beam with foam pipe insulation to save my scalp. One advantage of the low ceilings, however, is I store jigs, bench hooks, some clamps, assorted measuring tools, etc. between the joists.