Abstract: A supporting frame is provided for a light-transmitting ceiling panel, which panel extends to a vertical wall or other surface. The supporting frame is particularly designed for lighted ceilings in which light transmitting panels extend from wall to wall in a room and have sources of light thereabove. The supporting frame includes a side frame member having a horizontal flange which supports an edge of the light-transmitting panel and a vertical flange extending along a surface of the wall or vertical surface. The frame member is affixed to the vertical wall by suitable means extending through the vertical flange and the vertical flange also has indentations and/or openings to aid in affixing joint compound or the like thereto. In a preferred form, the supporting frame member has a shoulder formed at the junction of the vertical and horizontal flanges to which the joint compound or the like is spread when it is applied to the vertical flange and over the adjacent vertical surface of the wall.

Abstract: A ceiling frame is provided for a lighting fixture. The ceiling is of the type made of plaster panels commonly known as dry wall, wallboard, plaster board, or gypsum board. A rectangular opening is made in the plaster panels between rafters and the lighting fixture is suitably mounted on the ceiling above the panels. The ceiling frame includes side frame members having vertical flanges positioned adjacent the edges of the ceiling panels at the rectangular opening and horizontal flanges extending outwardly from the opening along the lower surfaces of the panels. The horizontal flanges are affixed to the panels by pop rivets or the like which also extend through upper horizontal flanges or brackets adjacent the upper surfaces of the panels. The ceiling frame also includes two end frame members of similar design but affixed to the ceiling panels adjacent the end edges of the opening by rivets and brackets.