Product Overview The Chief CMS018 is an 18-inch fixed extension column that sets the drop distance between a ceiling plate and a suspended projector or display mount. It is built for permanent ceiling installations in conference rooms, classrooms, and commercial meeting spaces that require a defined, secure mounting height. The column uses 1.5-inch NPT threading on both ends and ships in a black finish. Product Description The CMS018 saves installation time and maximizes security in suspended AV deployments by providing a rigid, fixed-length column rather than an adjustable telescoping assembly. The aluminum construction combines easy handling with the strength needed to carry projector and display loads at the ceiling. Flow-through cable management with a dedicated cable exit port routes power and signal cabling inside the column for a clean, finished appearance. Because the 1.5-inch NPT column is threaded on both ends, it connects directly to any Chief 1.5-inch NPT ceiling plate, coupler, or mount accessory, giving integrators a modular way to build the exact drop height a room requires. The fixed length removes the adjustment hardware that can loosen over time, which improves long-term security in high-traffic public spaces. The CMS018 is TAA compliant for government and public-sector procurement. Pair it with Chief ceiling plates and mounts from the Chief collection at Creation Networks. Key Features 18-inch fixed length — Sets a defined, secure drop height between the ceiling plate and the mount. Aluminum construction — Combines easy installation with the strength to carry projector and display loads. Flow-through cable management — An internal cable path and exit port conceal power and signal cabling. 1.5-inch NPT, threaded both ends — Connects to any Chief 1.5-inch NPT ceiling plate or accessory. TAA compliant — Meets procurement requirements for government and public-sector projects. Technical Specifications Specification Detail Manufacturer Legrand AV / Chief Model CMS018 Product Type Fixed extension column Length 18 in Thread 1.5 in NPT, threaded both ends Material Aluminum Cable Management Flow-through with cable exit port Finish Black TAA Compliant Yes