http://www.houchinconstruction.com/proj ... 2&i=236#imThis is our new facility. They are steel buildings so the polycarbonate roof thing I can't help you with.
We put the mechanics shop at the end of the building to isolate the noise and to keep the traffic out of there.
Parking lot lighting is all done with wall packs on the buildings.
Grinding room is separated from the main shop and power vented outdoors.
The lifts are located on one side of the shop near bay doors leaving enough room to get a 40 horse tractor and Typcrop material handler inside as one unit. (That was the longest combo I could put together)
There are some things I would do differently now, but they are minor.
Congratulations on getting a new shop!
Regards,
Steve