Dropped ceiling
（重定向自Suspended Ceiling）
![Dropped ceiling, after installation. Light fixtures, a speaker grill, smoke detectors, and an air grill are all visible.](/Images/godic/202502/14/Suspended-ceiling-0a3724.jpg")
![Dropped ceiling with LED lamps](/Images/godic/202502/14/3000K_LED_T-Bar_Ceiling_Light3724.JPG")
![Interlocked panels can be](/Images/godic/202502/14/Dropped_concealed_23724.JPG")
![Stretch Ceiling Installation over an existing popcorn ceiling.](/Images/godic/202502/14/Stretch_Ceiling_Installation3724.jpg")
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, or ceiling tiles and is a staple of modern construction and architecture in both residential and commercial applications.