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Glynn Johnson
Frequently Asked Questions
What is Glynn Johnson?
Glynn Johnson is an Allegion brand specializing in overhead door control. It is best known for overhead door stops and holders.
What products does Glynn Johnson make?
Glynn Johnson's product range includes overhead door stops and holders, both surface and concealed.
What does a Glynn Johnson overhead stop do?
An overhead door stop limits how far a door can swing open, protecting walls, hardware, and the door itself from damage. Glynn Johnson offers surface-mounted and concealed models, with hold-open options that keep a door open at a set position.
Where is Glynn Johnson hardware typically used?
Glynn Johnson hardware is specified for limiting door swing and protecting walls and adjacent hardware.
Is Glynn Johnson hardware suitable for commercial and code-regulated openings?
Yes. Glynn Johnson products are made for commercial use and, where applicable, carry ANSI/BHMA A156.6 for architectural door trim. Confirm the specific model's listings against the opening's fire, smoke, accessibility, or security requirements.
How do I choose between a surface and concealed Glynn Johnson stop?
Concealed stops mount inside the door and frame for a clean appearance and are common on new or high-visibility openings; surface stops are easier to retrofit on existing doors. Select by door width, frequency of use, and whether hold-open is needed.
Does National Lock Supply sell genuine Glynn Johnson products?
Yes. National Lock Supply is a stocking distributor of genuine Glynn Johnson overhead door stops and holders, with competitive pricing, real-time availability, and expert support to help you specify the right part. Browse the full Glynn Johnson line or contact us for project quotes and cross-references.