Product Overview The Chief CMA165 Junction Box Adapter simplifies projector installation in finished or new-construction ceilings. It lets an integrator suspend a projector between ceiling joists through just a 4-inch hole, much like installing a ceiling fan. The adapter is designed for residential and light-commercial projector mounting applications. Product Description Running a projector mount into a finished ceiling usually means dealing with limited access above the drywall, and the Chief CMA165 junction box adapter is engineered to make that job quick and clean. With only a 4-inch hole cut in the ceiling, an installer can suspend the projector between the ceiling joists, an approach similar to mounting a ceiling fan. The kit includes a junction box mounting brace and a 5-inch round plate that adapts to 1.5" NPT extension columns, so it ties directly into standard Chief projector column hardware. The brace expands to fit either 16-inch or 24-inch joist spacing, covering the most common framing layouts in both new construction and retrofit work. The ceiling plate mates with a standard fan mounting junction box, letting integrators use familiar electrical-box practices. This makes the CMA165 a practical choice for clean projector installs in home theaters, training rooms, and small presentation spaces. For extension columns, projector mounts, and related hardware, browse the Chief collection at Creation Networks. Key Features 4-inch hole install — Suspend a projector between ceiling joists through just a 4" ceiling opening. Complete adapter kit — Includes a junction box mounting brace and a 5" round plate that adapts to 1.5" NPT extension columns. Fan-style installation — Installs similarly to a ceiling fan, mating with a standard fan mounting junction box. Adjustable joist spacing — Expands to fit 16" or 24" joist spacing for new or existing construction. Technical Specifications Specification Detail Model CMA165 Type Junction box ceiling adapter Ceiling Opening 4 in hole Included Plate 5 in round plate, 1.5" NPT compatible Joist Spacing Expands to 16" or 24" Application Projector ceiling mounting Brand Chief (Legrand AV)
