The stair is not enclosed and the space underneath doesn't get in the way of egress The next run passed over two adjacent small offices Hello all, per 2021 ibc 1011.7.3, it looks like there cannot be any storage closets under stairs within an interior stairwell enclosure unless it is accessed outside the enclosure and properly rated I have come across this at multiple newly constructed buildings where a door is located inside. It's really just a storage space I want to add a access door so that the client can store stuff under the stair
I get that per r302.7 the walls and ceiling. There shall be no enclosed, usable space within an exit enclosure, including under stairs, nor shall any open space within the enclosure be used for any purpose that has the potential to interfere with egress Does anyone have any thoughts or experience with a situation like this I have a call into the ahj If you are considering any unfinished basement with a door part of the enclosed side of the stairs, wouldn't you have to rock the lid, soffet, and walls. So while the stairs are enclosed (or, at least separated from conditioned space), it's technically not required to be
And the question is, does that area have to be rated, with 5/8 drywall, fire caulk, rated door and frame with closer, and so forth. If the door is on the exterior wall, does it require any rating. Regarding 2010 cbc sections 1009 & 1012for a storage mezzanine in an s occupancy, can the stair dimensions, landing and railing requirements deviate in any way from the standard requirements?the only two exceptions i found were 1
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