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    • Glynn Johnson

    Glynn-Johnson: Precision Door Control and Protection

    If your doors are hitting walls or being caught by the wind, you need Glynn-Johnson. Known as the "Master of Overhead Door Control," Glynn-Johnson produces the industry's most reliable overhead stops and holders. These are essential for any high-traffic commercial door, acting as a shock absorber to protect the hinges, closer, and the door frame itself from structural damage.

    At Lock Depot, we stock the 100 Series for heavy-duty institutional use and the 90 Series for standard commercial doors. Available in concealed or surface-mounted versions, Glynn-Johnson hardware ensures your doors open exactly as far as they should -- and no further. They are the invisible insurance policy for your expensive door hardware.

    PRO TIP: Closers are NOT Stops

    A common maintenance mistake is assuming a door closer will stop a door from swinging too far. It won't -- it will actually act as a lever and damage the frame. Always install a Glynn-Johnson 100 Series overhead stop on exterior doors. It's the only way to protect your investment in expensive closers and hinges.

    Glynn-Johnson overhead stops ship from our warehouses across America. Door control specialists for institutional and commercial openings.

    Series Type Mount Best For
    100 Series Heavy-Duty Overhead Stop Surface / Concealed Schools / Hospitals / Institutional
    90 Series Standard Overhead Stop Surface Mount Office / Commercial
    400 Series Overhead Stop & Holder Surface Mount Doors That Need to Stay Open
    SP81 Series Concealed Stop Concealed in Header Architecturally Sensitive

    Top Sellers

    • Shop Glynn-Johnson 100 Series Heavy-Duty Overhead Stop
    • Shop Glynn-Johnson 90 Series Standard Overhead Stop
    • Shop Glynn-Johnson 400 Series Stop & Holder

    Glynn-Johnson Resource Hub

    Glynn-Johnson FAQ

    Why do I need an overhead stop if my door already has a closer?

    A door closer controls the speed of closing but is not designed to stop a door from opening too far. Without an overhead stop, wind gusts or aggressive opening can force the door beyond its intended range, damaging the closer arm, hinges, and frame. An overhead stop absorbs this force and protects all of your door hardware.

    What is the difference between the 100 Series and 90 Series?

    The 100 Series is the heavy-duty model designed for institutional environments like schools and hospitals where doors see constant, aggressive use. The 90 Series is built for standard commercial applications with normal traffic. Both are available in multiple finishes to match your existing hardware.

    Can I get a concealed overhead stop that is hidden in the frame?

    Yes. Glynn-Johnson's SP81 Series and select concealed versions of the 100 Series mount inside the door header, leaving no visible hardware on the face of the frame. These are ideal for architecturally sensitive projects where clean sightlines are required.

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