Mezzanine

A mezzanine is an intermediate floor in a building which is open to the floor below. It is typically not counted as one of the building's main stories. The term is often used to describe a low-ceilinged story between two main stories of a building, and is usually positioned above the ground floor or the first floor.

Mezzanines are often used in industrial settings to provide additional storage or office space without significantly altering the building's structure. In residential buildings, a mezzanine can create a loft-like feel and provide additional living space. They can also be found in public buildings like theaters and concert halls, often providing additional seating areas overlooking the main floor.

The size of a mezzanine can vary, but generally covers less than one-third of the floor below. Building codes often regulate the size and design of mezzanines to ensure they meet safety standards and do not compromise the structural integrity of the building. Key considerations in building a mezzanine include load-bearing capacity, fire safety, and accessibility.