Can someone help me with this NCARB demo exam question?


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    Hello Minquan,

    The item writer was referencing the exception to A117.1 section 404.2.5 in the case study which says that existing or altered thresholds 3/4" maximum in height with a beveled edge on each side that have a slope less than 1:2 are permissible. It is debatable however, that this is an altered threshold since the question states there is no existing threshold installed at the door. I've flagged it for review by our volunteer architect item writers for edit or replacement in a future version of the practice exam.

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