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    Jamb/Stud Wall Security

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    This paper deals with a single specific building security problem. It is the researchers intent to point out the inherent weakness of “jamb/stud” wall construction adjacent to door jambs, specifically relating to the problem of mechanical “spreading” as a means to gain illegal entry.

    Comparative data and comments were compiled as a result of testing based on ASTM Tests for Security of Swinging Door Assemblies (F476 - 76) 2 by 4 wall construction versus a modified 2 by 4 wall condition. The conclusion drawn points to sufficiently increased resistance to illegal entry by minor modification of the common wall structure adjacent to door jambs.


    building security, jamb/stud walls, door jambs, illegal entry, wall construction

    Author Information:

    Martin, A
    General manager, National Steel Products Co., Monroe, La.

    Patrick, C
    Chief engineer, Curries Manufacturing, Inc., Mason City, Ia.

    Committee/Subcommittee: F12.40

    DOI: 10.1520/STP28085S