Sturdy, self standing, stable. I bought a 2nd one of these (so I could have one in each bathroom). Adds a tremendous amount of storage space, and still avails ready easy access to the toilet tank lid. I didn’t install the doors on the cabinet, in either of the 2 of these I purchased, I put towels on the shelves (no linen closet at my place) and without the doors more stuff fits on the shelves.