Thanks for the input. Some background: Ceiling location where I want the air source is 12' up, and I would also have interference from one track/rail of the garage door. My shop is a SIP building (Structured Insulated Panels). SIPs are strong enough for many things hanging on it. Plus I sheathed my SIP panels with another 1/2" sheet of plywood on top of the 5/8 strand board. But still, there isn't a real 2X4 type member at the spot on the wall where the reel would be most appropriate. So.... that sends me to thinking about putting on the floor. Note, this is one of those heavy metal reels.
Wondering if anyone had pictures of their installation? How many times have you tripped over it? etc. Nikon_RH50, I appreciate your input.