The Trinity shelves are commercially strong and convenient if you purchase or they come with locking wheels. I would advise purchase of the commercial grade shelf liner if storing smaller items like cans of food or other smaller items is necessary. I did the usual web screen for the best price and overstock.com was the best price even over my warehouse club.
I'm having a heck of a time trying to assemble this large cart. The wheels will ABSOLUTELY NOT GO ON. I had to switch to the stationary feet after I had two shelves in place (when the feet started falling off)...sigh, you can imagine what a mess that was...Even the stationary feet are not the same in height since two of them could not be screwed in the entire way (even with using a wrench). The little black plastic clips do not slip into the shelf end opening thus all the weight is on them just sitting there and the shelf keeps slipping down. Everything seems well made but that is useless if you cannot put it together. I had to take a day off to just calm down. I am just so upset with the feet. The whole plan was to roll it around in the garage for when I needed extra space. No way, I'm going to try and take it apart so I can return it. Now I am stuck with it. I hope I can at least make it functional.
The box I received had minor damage. I had one shelf that had a few wires bent. Otherwise everything was in perfect condition. It's not even worth bothering trying to replace the bent shelf. The wire shelving rack is exactly what you'd expect. The assembly was easy enough for two people (you'll want a second person to get the racks on). Adjusting the shelves after assembly is more challenging, so you're going to want to plan the shelf sizes ahead of time if possible.
This is one of the largest shelves I have seen. The adjustable height helps customizing for any needs. easy to put together even for 1 person, although 2 may be easier to get it started. metal is virtually rust proof as I have another model made by the same manufacturer for the last 5 years,
The extra depth of these shelves makes them wonderful for storing larger bins. I bought 5 of them for one attic, 4 for another, and 3 for my mother-in-laws' garage. They hold a ton of stuff and will help you get organized! I highly recommend them!