A ceiling panel installation bracket has first and second flanges, and is alternatively attachable to an overhead joist or to a vertical surface of a top plate spanning a set of wall studs. The bracket has a hinged flange to which an elongated, oblique, floor-engaging, panel support can be secured. Two assemblies, each consisting of a bracket and an elongated panel support are used in laterally space relationship to guide a ceiling panel into place. Retractable stops provided on the oblique supports are used to support a ceiling panel temporarily.