Ceiling system with integrated equipment support structure

A modular unit configured for attachment to a building frame, the modular unit comprising:

• a plenum having a perimeter of material formed into a rectangular box;
• a horizontal rail extending along a top of the plenum and connected to and supporting the plenum;
• a grid of supports attached to the perimeter of the plenum, the supports defining a suspended ceiling suspended from the perimeter of the plenum;
• a truss separate from the grid of supports and directly attached to and supported by the rail, the truss contained inside the rectangular box;
• and
• an apparatus mount attached to at least one of the supports, wherein an apparatus is configured to be hung from the apparatus mount,
• wherein the plenum is suspended from the building frame.

A modular unit configured for attachment to a building frame, the modular unit comprising:

• a plenum having walls defining a perimeter of material;
• a horizontal rail extending along a top of the plenum and connected to and supporting each of the walls of the plenum, the rail connected to an upper portion of each wall;
• a grid of supports attached to the plenum, the supports defining a suspended ceiling;
• a truss separate from the grid of supports and directly attached to and supported by the rail, the truss arranged inside the plenum, the truss capable of supporting at least 900 lbs of ceiling-mounted equipment and transmitting the load of the ceiling-mounted equipment to the rail, and wherein the plenum is suspended from the building frame by a plurality of hangers.