The Pacific VP90-FH Fire-Rated Floor Hatch consists of one or two proprietary fire-rated non-load-bearing panels resting in a pressed steel frame. The steel frame is fixed to a timber sub-frame supported from timber truss chords or joists, which form part of the floor-ceiling or roof-ceiling system. The access hatch permits the installation of relatively large plant into the ceiling cavity or the removal of that equipment for maintenance purposes.