A False ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling,suspended ceiling, grid ceiling, drop in ceiling, drop out ceiling, or ceiling tiles and is a staple of modern construction and architecture in both residential and commercial applications.

Effective building design requires balancing multiple objectives: aesthetics, acoustics, environmental factors, and integration with the building’s infrastructure—not to mention cost of construction as well as long-term operation costs.