One of the things that most homeowners despise is finding wire shelves in their brand new home. These types of shelving units tend to be all over the place; they are often installed in closets, pantries, and even laundry rooms.
These “builder-installed” wire units tend to be a hazard because they easily fall out of the wall when put to use. They typically lack the structural integrity needed for holding items on top of the shelf.
Generally speaking, it is possible to have a much better and more secure storage system. One such system is a melamine closet (or an MDF board closet).