Reflected ceiling plans (RCP) showing partial grid ceiling layout for a large commercial project. System spes include Luxalon cell ceiling & 9mm thk. gypsum board (Jayaboard) or Kalsiboard. – Section A (1:75): Details indirect lamp installation, hollow 40x40mm steel framing, and gypsum to cell ceiling transitions. – Section B (1:75): Cross-section through plaster board and cell ceiling assemblies. – Detail-01 (1:50) and Isometric: Specific assembly info for the Luxalon cell system. Drawings include legenda for GB (Gypsum Board), KB (Kalsiboard), and EX (Exposed Concrete). All dims in mm. Project appears to be from a larger mixed-use or office development given the scale.