STAIR vignette question.

Ramp, Stair, & Roof Vignettes and Multiple Choice

STAIR vignette question.

Postby ZHAOYANG » Fri Apr 21, 2017 1:04 pm

Hello everyone,

Please see the attachment below, check if my understanding is correct.

Rule 1 Doors: When opening, doors shall not reduce the width of landings to less than one-half of the required width.
Rule 2 Handrail : Handrails shall not project more than 4 inches into the required passageway and stairway width.

To the right, incorrect ones, when handrail project to the 60"X 60" door clearance for 12", first against rule 2. Also, when door is opening, the width of landing because 24" (less than half of 56" landing width), which is against rule 1.
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Re: STAIR vignette question.

Postby Coach » Fri Apr 21, 2017 1:14 pm

ZHAOYANG wrote:Rule 1 Doors: When opening, doors shall not reduce the width of landings to less than one-half of the required width.

Stair - Door & half width.jpg


Rule 2 Handrail : Handrails shall not project more than 4 inches into the required passageway and stairway width.

Rail mounted on door wall may encroach. Rail at wall door swings onto is ok because of jamb and door thickness.
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Re: STAIR vignette question.

Postby ZHAOYANG » Fri Apr 21, 2017 1:20 pm

Thank you very much, Coach!
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