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// CODE SNIPPET

1011.5.5.3 Solid Risers

Building Code 2015 of Utah > 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. There are no restrictions on the size of the opening in the riser.

3. Solid risers are not required for spiral stairways constructed in accordance with Section 1011.10.
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