The Chief CMA165 Internal Joist Ceiling Kit is designed for residential and light-commercial rooms where the ceiling is already finished or the joists are hidden. Rather than opening a large section of drywall, the installer cuts a 4-inch hole, slides the expanding brace into the joist bay and spreads it to fit 16-inch or 24-inch on-center framing. A standard fan-mount junction box fastens to the brace, and the included 5-inch round plate mates with that box and accepts a 1.5-inch NPT extension column for the projector mount. The process will feel familiar to anyone who has hung a ceiling fan. Chief rates the kit at 50 lbs, so it suits lighter home-theater and small-room projectors. The kit is TAA compliant. Always confirm the joists and fan box are rated for the complete projector, column and mount load.
Key Features
- 4" ceiling hole installation
- Expands from 16" to 24" between joists
- 5" round plate for 1.5" NPT columns
- Mates with a standard fan junction box
- 50 lb (22.7 kg) capacity
Ideal Applications
Home theaters, media rooms and small conference rooms with finished drywall ceilings where minimal ceiling damage is a priority.
Compatibility
Plate accepts Chief 1.5" NPT extension columns and mounts. Fits wood joists at 16" or 24" spacing. Extension column, projector mount and electrical work not included; check whether your fan box is supplied or required locally.