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    All images courtesy of dormakaba Americas
    A floor door closer that has offset pivots is the only way to properly hang and control decorative arched-top doors such as these.
    Door closers

    The Ins and Outs of Concealed Door Closers

    Chris Freeman
    Sept. 20, 2021
    Troubleshooting and maintaining the door hardware has become a lost art.
    The Norton 9300BC is a durable door closer designed for commercial exterior and interior doors, such as storefront and industrial applications.
    Door closers

    Door Closers 101: An Update

    Tim O'Leary
    July 2, 2021
    Repairing and replacing this vital door hardware component is a common job for the commercial locksmith.
    Damage caused by a sagging door.
    Door closers

    Concealed Overhead Door Closers: Easy to Replace

    Michael C. Tritel
    July 1, 2021
    A sagging laundromat door continues to put regular repair dollars in the pocket.
    All images courtesy of dormakaba Americas
    A super parallel arm
    Door closers

    The Science and Art of Door Closer Arms

    George Nimee
    July 1, 2021
    Know the different types and how each is aimed at different applications.
    Best Closer
    Door closers

    Versatile BEST Door Closer Provides Premium Door Control Solutions

    BEST Access Systems
    Sept. 9, 2020
    The series is ADA-compliant and ideal for heavy-use institutional applications.