A dropped ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop-in ceiling, drop-out ceiling, acoustical ceiling or ceiling tiles and is a staple of modern construction and architecture in both residential and commercial applications. T-Bar has many characteristics that make it a popular choice among contractors, such as hiding mechanicals, great interior finishes, easy access and acoustical properties.