We rented a 6k sq ft warehouse to House all of our 480 volt machines and some of our 208v. 1 and 3 phase machines. Space is about 3x as long as it is wide. Will attach photo. I’m preparing for a planning visit by the electrician who is going to ask me what I want done. All the power is on the wall at one end of the space. There are two separate 480 volt 3 phase circuits coming in, one fused at 150 amps goes to panel and two buck transformers that run lights, two ceiling electric heaters, a vent fan, and many quad outlets. The other (good for 90 amps at 480/3) was intended to run machinery but isn’t yet connected; has wire and conduit to building electric room but only goes into a dead j-box. Assuming we get it on a meter etc. I’m interested in any layout recommendations regarding the distribution network and machine placement. For example, is it better to have machines on one of the long side walls or lined up down the center of the floor? We don’t currently do any production type jobs where work flow would be a factor, our work is all onesies, prototype, etc. A friend who has some factory experience suggested lining up the machines down the long center axis of shop with pairs back-to-back, with power cables coming down from ceiling to each pair. Ceiling is only 22 ft. High. Machines include two mills, 5 assorted drills, two band saws, 3 grinder/buffers, shaper, 2 threaders, dust collector, 10 hp air compressor, welder/plasma cutters (both 208/1), and some others. Motors probably average 2 hp. Ignoring the compressor. No more than two machines run simultaneously due to limited operators. Since physical proximity of one machine to another isn’t a factor for work efficiency, I’d plan to group 480 volt machines at one end and 208/3 machines at other. We have spare 208/480 and 480/208 4-phase transformers up to 45 kva if using them somewhere in the design makes sense.