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// CODE SNIPPET

1011.5.5.3 Solid Risers

Building Code 2018 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers > 1011.5.5 Nosing and Riser Profile > 1011.5.5.3 Solid Risers
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Risers shall be solid.
Exceptions:
  1. Solid risers are not required for stairways that are not required to comply with Section 1009.3, provided that the opening between treads does not permit the passage of a sphere with a diameter of 4 inches (102 mm).
  2. Solid risers are not required for occupancies in Group I-3 or in Group F, H and S occupancies other than areas accessible to the public. The size of the opening in the riser is not restricted.
  3. Solid risers are not required for spiral stairways constructed in accordance with Section 1011.10.

Related Code Sections


1011.5.5.3 Means of Egress, Solid Risers
Risers shall be solid. Exceptions: Solid risers are not required for stairways that are not required to comply with Section 1009.3, provided ...
Building Code 2021 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers > 1011.5.5 Nosing and Riser Profile > 1011.5.5.3 Solid Risers
1011.5.5.3 Means of Egress, Solid Risers
Risers shall be solid. Exceptions: Solid risers are not required for stairways that are not required to comply with Section 1009.3, provided ...
Building Code 2018 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers > 1011.5.5 Nosing and Riser Profile > 1011.5.5.3 Solid Risers
1011.5.2 Means of Egress, Riser Height and Tread Depth
(32 mm) shall be provided on stairways with solid risers where the tread depth is less than 11 inches (279 mm). See Section 503.1 ...
Building Code 2021 of Illinois > 10 Means of Egress > 1011 Stairways > 1011.5 Stair Treads and Risers > 1011.5.2 Riser Height and Tread Depth
Section 1011 Means of Egress, Stairways
/ 4 inches (32 mm) shall be provided on stairways with solid risers where the tread depth is less than 11 inches (279 mm). See Section 503.1 ...
Building Code 2018 of Illinois > 10 Means of Egress > 1011 Stairways
Section 1011 Means of Egress, Stairways
nosing projection not less than 3 / 4 inch (19.1 mm) but not more than 1 1 / 4 inches (32 mm) shall be provided on stairways with solid risers ...
Building Code 2021 of Illinois > 10 Means of Egress > 1011 Stairways
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