Shelving Supported Mezzanines are designed using new or existing lower level shelving to partially or fully support a floor system overhead. This is accomplished by installing special supports at the top of the storage system which supports a particular floor system. The flooring can be provided in a number of options from bar grating to roof deck and plywood and many other options. Handrail, gates and stairs are also used to access and provide safety for personnel using the system. This type of system allows any upper level storage equipment to be moved around and reconfigured at any time with the lower level being installed in a permanent fixed location.