Interpretation #6826

Published August 29, 2011

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Original Request

Code Version
2007
Code
BUILDING
Code Description
Building
Chapter
1
Section
Topic

Question

Is it the intent of Section 1009.7, Exception 2, R3 Occupancy (per the 2009 Supplement), to allow the narrow end of treads to be any size radius? as long as a minimum tread depth of 9 inches at 12" from the narrow end is provided.

Answer Published 08/29/2011 at 9:14 AM

No.

Commentary

In R-3 occupancy in accordance with FBCB 1009.3(as referenced in 1009.7)specifically 1009.3 exception 4 the minimum winder tread depth shall be 6 inches.