A dropped ceiling is a secondary ceiling, hung below the main ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop in ceiling. There are variety of false ceiling types which are used for home interior. However, few of them based on material used are explained below: Plaster of Paris (POP) False Ceilings. Wooden False Ceilings or Plywood Plywood False Ceilings. Gypsum False Ceilings. Metal Ceiling Tiles. PVC Ceiling. Fabric or Cloth False Ceiling.