Peerless-AV CMJ300 – 4x4 Unistrut and Structural Ceiling Plate

CMJ300 – Peerless-AV 4" x 4" Unistrut and Structural Ceiling Plate

The Peerless-AV CMJ300 is a 4 x 4-inch steel ceiling plate engineered to secure extension poles and display mount assemblies to unistrut or solid structural ceiling surfaces, with a lifetime warranty and a 250 lb load rating.

Product Description

The CMJ300 is the foundational hardware interface for ceiling-based video display installations using Peerless-AV extension poles. Measuring 4 x 4 inches (10.16 x 10.16 cm), the plate attaches directly to 1-5/8 x 1-5/8-inch unistrut channel or to solid structural ceiling surfaces, providing a secure and properly rated anchor point for the extension pole and mount assembly above.

Steel construction keeps the plate compact and rigid within its 0.7-inch height profile, adding minimal depth to the overall installation footprint. At just 0.64 lb, the CMJ300 is easy to handle and position during installation without requiring additional support or staging equipment.

Rated to 250 lb, the CMJ300 meets the load demands of most commercial single-display ceiling mount configurations. The lifetime warranty underscores its suitability for permanent commercial AV infrastructure where long-term reliability is a primary requirement.

Key Features

• Supports ceiling-mounted extension poles and display assemblies up to 250 lb.
• Compatible with 1-5/8 x 1-5/8-inch unistrut channel and solid structural ceiling surfaces.
• Compact 4 x 4-inch (10.16 x 10.16 cm) plate footprint minimizes ceiling penetration area.
• Low-profile 0.7-inch height keeps the installed assembly close to the ceiling surface.
• Steel construction provides a rigid, reliable mount anchor point.
• Lightweight at 0.64 lb for easy single-person installation.
• Black finish matches standard Peerless-AV ceiling mount hardware.
• Lifetime limited warranty — manufactured in the United States.

Technical Specifications