Mechanical room
A mechanical room, boiler room or plant room is a room or space in a building holding the mechanical equipment and its electrical equipment, unlike rooms made for human occupancy or storage. The size of the mechanical room is usually similar to the size of the building. A small building or home may have a utility room or laundry room. In larger buildings, mechanical rooms can be of very large size, often requiring multiple rooms throughout the building, or even occupying one or more complete floors (see: mechanical floor).