We have chrome wire modular shelving from theshelvingstore.com, and love it. It can hold heavy loads, has sturdy lockable wheels, and is incredibly easy to move even when filled. Our collection storage office is small, so we were able to add quite a few of these units, and then just unlock the wheels and move the units to create an “aisle” to access whatever we might need. Like you, all of our archival items are in the boxes, etc, so nothing is actually touching the metal; however, we also have reemay to put under something if we would ever need to.
