The International Building Code (IBC) Section 1009.4.4 requires stair risers and tread widths to be uniform height and width within a tolerance of 3/8 inch throughout the entire flight of stairs. Why is this important? The reason became instantly..
Uniform Stair Risers
by David Stutzman | Mar 9, 2011 | code, Code Requirements, Design Considerations, Division 05, Product Failures, Stairs