A ceiling system for use in an interior building environment. In one aspect, the invention may be a ceiling system comprising: a frame comprising a plurality of struts; a plurality of modules, each of the modules comprising a panel and a plurality of hook members coupled to and extending from a top surface of the panel; each of the hook members comprising: an upstanding section; a hook portion at a top end of the upstanding section, the hook portion defining a downwardly-facing open slot; and an attachment flange at a bottom end of the upstanding section that couples the hook member to the top surface of the panel; and the modules mounted to the frame, and wherein for each of the modules, the hook portions of the hook members fit over and rest upon the struts, the struts located in the downwardly-facing open slots of the hook portions.