// CODE SNIPPET
1011.4 Walkline
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The walkline across winder treads shall be concentric to the direction of travel through the turn and located 12 inches (305 mm) from the side where the winders are narrower. The 12-inch (305 mm) dimension shall be measured from the widest point of the clear stair width at the walking surface of the winder. Where winders are adjacent within the flight, the point of the widest clear stair width of the adjacent winders shall be used.
Related Code Sections
1011.4 Means of Egress, Walkline
The walkline across winder treads shall be concentric to the direction of travel through the turn and located 12 inches (305 mm) from the side ...
1011.5.2 Means of Egress, Riser Height and Tread Depth
) between the vertical planes of the foremost projection of adjacent treads at the intersections with the walkline and a minimum tread depth of 10 inches ...
Building Code 2018 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers > 1011.5.2 Riser Height and Tread Depth
1011.5 Means of Egress, Stair Treads and Risers
at the intersections with the walkline and a minimum tread depth of 10 inches (254 mm) within the clear width of the stair.
Exceptions: Spiral ...
Building Code 2018 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers
1011.5.4 Means of Egress, Dimensional Uniformity
and smallest tread depth shall not exceed 3 / 8 inch (9.5 mm) in any flight of stairs. The greatest winder tread depth at the walkline within any ...
Building Code 2018 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers > 1011.5.4 Dimensional Uniformity
Section 1011 Means of Egress, Stairways
). The walkline across winder treads shall be concentric to the direction of travel through ...