Glynn Johnson 454SSP28 Medium Duty Surface Overhead Stop

Product Description

The GLYNN JOHNSON 454SSP28 is a medium duty, size 4 surface overhead stop designed for commercial and institutional door control applications. Mounted to the door frame header and door face, the surface overhead stop limits door travel to protect walls, door hardware, and adjacent finishes. The unit ships in an aluminum finish and is sold as an individual piece. At 2.4 pounds, it is a manageable installation for door hardware technicians and commercial locksmiths. The surface-mount design eliminates the need to mortise into the door or frame, simplifying the retrofit process on existing openings.

Surface overhead stops in the size 4 category are commonly specified for medium duty commercial applications including offices, schools, healthcare corridors, and light institutional facilities. This stop is suited for wood, hollow metal, and aluminum doors where door swing must be controlled and wall or casework protection is required. The aluminum finish integrates cleanly with standard commercial door hardware. It is appropriate for both new construction and replacement installations where a low-profile, surface-applied stop is preferred over a concealed or floor-mounted solution.

Key Features

• Surface overhead mount eliminates mortising for faster installation on existing door frames
• Medium duty construction rated for standard commercial door traffic
• Size 4 category suitable for typical commercial interior door openings
• Aluminum finish for a clean, low-profile appearance on commercial openings
• Compact profile: 25.8 inches length, 2.6 inches width, 1.4 inches height
• Lightweight at 2.4 pounds for single-technician handling during installation

Compatibility

Designed as an OEM-style surface overhead stop for medium duty commercial door applications where a size 4 stop is specified by the door hardware schedule.

Installation Notes

Installation is typically performed by a licensed door hardware technician or commercial locksmith familiar with ANSI and BHMA door hardware standards. Power is not required for this mechanical device, but the door should be held in a controlled position during fastener installation to ensure proper stop arm alignment. Use fastener types appropriate for the door and frame substrate — wood screws for wood frames, sheet metal or through-bolts for hollow metal. Verify final door swing clearance and stop engagement before returning the opening to service.