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    • Hollow Metal Doors & Frames

     

    STC Acoustic Door
    Assemblies

    Sound Control Door & Frame Assemblies

    Stainless Steel Doors & Frames

     

    Hurricane-Rated Door Assemblies

    Hurricane-Rated Door & Frame Assemblies

    Door Handing Chart

    NAAMM-HMMA

    Next Door is a member in good standing of HMMA and follows NAAMM-HMMA guidelines.

    Reference Manuals

    • Other NAAMM-HMMA reference manuals available here.

     

    Specialty Steel Industry of North America Designer Handbooks

    • Note: handbooks focus on stainless steel, not doors. More SSINA information available here.