Mezzanine vs. Equipment Platform
Some commercial buildings have elevated, occupiable platforms between two floor levels. These are referred to as mezzanines. You may find them used for office space, seating in venues, or storage or display areas in retail. During an inspection, you may also come across elevated platforms for equipment.
Although both may appear to be just elevated platforms, equipment platforms and mezzanines are different and fall under distinct requirements for building construction plans and overall code compliance. The main difference is their use:
- A mezzanine provides additional usable floor space intended for occupancy or operations.
- An equipment platform is only for mechanical systems and equipment and must not be used for occupancy beyond routine service access.
Mezzanine Inspection Procedure
This video demonstrates how to inspect a mezzanine. Although mezzanine construction varies (i.e., wood, steel, self-supporting, or ground-supported), a consistent inspection process can be followed:
- Start with a macro view: Look for deviations from plumb, level, square, or straight. If any visible issues suggest compromised structural integrity, do not access the mezzanine.
- Move to a micro view: Inspect the underside of the mezzanine’s structural supports and connections, such as beams, columns, brackets, and visible floor, wall, or ceiling connection points. Then access the platform and check the following:
- Stairways, platforms, and their components
- Edge protection and guardrails
Refer to the video for an overview of the measurements and inspection points for access stairs, platforms, and their safety components.
Commercial building codes generally require a clear height of at least 7 feet (2134 mm) above and below the mezzanine floor construction. Mezzanines must also maintain unobstructed means of egress. Access should be provided by proper stairways, as fixed ladders are not considered a safe egress component.
Additional Resources for Commercial Property Inspectors: