Ceiling grid system

A ceiling grid system for use as part of a suspended ceiling having a plurality of ceiling panels, the ceiling grid system being configured to hold each one of the ceiling panels in a predetermined position within the suspended ceiling when the suspended ceiling is installed in a physical space such as a room, the ceiling grid system comprising:

• a plurality of main runners configured to attach to a support structure in the physical space;
• a plurality of cross-runners oriented transverse to the plurality of main runners thereby forming a two-dimensional array having a plurality of openings and being disposed in a horizontal plane in the physical space, each one of the openings defining each one of the predetermined positions within the suspended ceiling in which a corresponding ceiling panel is disposed, the main runners and the cross-runners configured to attach to each other and to be fixed in the horizontal plane in the physical space;
• and
• a plurality of panel support members, each one of the panel support members connected with a predetermined one of the main runners or a predetermined one of the cross-runners, each one of the panel support members configured to support one of the ceiling panels;
• wherein after assembly of the ceiling grid system, each one of the panel support members is movable vertically in a linear manner with respect to the predetermined one of the main runners or the predetermined one of the cross-runners to facilitate the installation or removal of one of the ceiling panels with respect to its predetermined position within the suspended ceiling, and
• wherein each one of the panel support members that is movable vertically in a linear manner is connected by a periodic interlocking protrusion and hole connection with a predetermined one of the main runners or with a predetermined one of the cross-runners.