Got bored. I didn't like not being able to lift the little 5g pots. With the pigger pots I can see that being a safety factor, but plants stretching after flip can drink a pot dry pretty quick. Combine my need to get personal with each plant, and losing a few inches of floor space with that washing machine tray, I ditched the tray and shelving and stuff is back on the floor.
Figured I'd also point out some of the ghetto-fabulous Macguyvers I did to make a closet work. Above, the power cord for the light goes through the wall to the laundry room on a separate circuit from the bedroom. The intake vent is 'periscoped' into the bedroom. It is cut about 2' high from the floor, then the intake in the room is at the baseboard. Some blue washable air filter jammed in the hole to snag some dust. I have the carpet stripped out, and pond liner on the floor.
I needed a pole to mount the fan on or I would lose floorspace to a tower fan. The wire shelves were great because I could extend one of the legs up and clip the fan to that. But they didn't reach the ceiling. No shelf - no pole. By using the center part of a crutch and a wooden peg to get it close to the ceiling I was able to use the foot of the shelf to tighten it up. Pipe across the ceiling for the light, and a piece of paracord with a tightener (like tent vents) to hang the wires out of the way and be able to adjust it with the light height
Extra boards on the inside of the door frame, weather stripping and foil tape for pure darkness. This was the first grow space and is pretty dialed in.
Cool pic from between the light bars.