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atrium stair ibc

  1. J

    Atrium or Floor Opening (or Both)?

    Question: I have three story B-occupancy building with a stacked lobby. In the lobby, there is a stacked, small floor opening and fancy stair. The floor opening / stair connects three stories. The floor opening / stair complies with 2015 IBC 1019.3 Condition #4, stating the stair can be...
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