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MEANS OF EGRESS

Philadelphia Code Subcode R, § R311
in effect
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SECTION R311 MEANS OF EGRESS * * * [Pursuant to the UCC, delete Section R311.7.4 and replace as follows:] R-R311.7.4 Walkline. The walkline across winder treads and landings shall be concentric to the turn and parallel to the direction of travel entering and exiting the turn. The walkline shall be located 12 inches (305 mm) from the inside of the turn. The 12-inch (305 mm) dimension shall be measured from the widest point of the clear stair width at the walking surface. Where winders are adjacent within a flight, the point of the widest clear stair width of the adjacent winders shall be used. [image omitted; see the official code] FIGURE R311.7.4 WINDER TREAD AND LANDING DETAIL * * *
Source: City of Philadelphia, The Philadelphia Code and Home Rule Charter (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/philadelphia/latest/philadelphia_pa/0-0-0-312074Fetched: 10/27/2026

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R311 | Corpus