A false ceiling, also known as a dropped ceiling or suspended ceiling, is a secondary ceiling that is suspended from the main ceiling. It is typically installed to improve the aesthetics of a room, to hide wiring, ductwork, and pipes, or to improve insulation and soundproofing. False ceilings are usually made of lightweight materials such as gypsum, plaster, or metal tiles that are hung from a metal frame or grid. The tiles can be easily removed and replaced, making it convenient to access the space above the false ceiling for maintenance or repair work. While false ceilings are a popular choice for commercial buildings such as offices, hospitals, and schools, they are also used in residential buildings for aesthetic and practical purposes.