For the record, RBI racks come bolted together AND glued for stability. They are IMO one of the strongest/steadiest racks available. ...and the DO replace a rack if UPS damages it. They do seem to use a dull pbade on some of the cuts because a tiny amount of clatter is noticed, though. Since the back are molded single pieces - not just screwed together - they are exceptionally strong. ...probably TOO strong......lol.
Vision comes flat, but it only took me about 45 minutes to set up my last adult rack (24 cages for something like $850 shipped). Running the heat tape just right takes another 20-30 minutes. No screwing. 6 wheels and 6 bolts - no nuts. I believe these are the cheapest per cage prices out there for anything even half as strong. You can also make adjustments to use various size tubs in the future - or different tubs on the same rack! Very versatile. The air holes in the top are the reason I no longer purchase their racks. Dust shoots out and in of those holes like crazy. In a small collection, who cares? In a large collection, that is just too much dust in one room. If a snake gets sick, dust from its cage WILL land in the cage of another snake. They REALLY messed up putting the airholes like they did. PLUS, if you take a snake out and put a new one in that spot, it is pretty much impossible to clean the top to the necessary levels due to those air holes.
I did complain and the guy asked me why I wanted to use air holes in the side since "that was how they did it in the '70's. I asked why he had to change something that worked for something worse JUST because he wanted to change something? He mumbled something, so I laughed and told him my wife was a vet and could always right an article on why top holes were less safe in large collections. We laughed, and I placed my order for more tubs. They really are fairly decent guys, and the racks are almost perfect. Their tubs are phenomenal. I just ordered another 175 of their V-35 tubs. I'm throwing away good RubberMaids and replacing them with the V-35 tubs. I think those tubs are just THAT high quality.
KJ