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    STC Acoustic Door

    Stainless Steel Doors & Frames


    Hurricane-Rated Door Assemblies


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

    • 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.

    Door Handing Chart