Change to How We Measure On Stairs Approved

[jar546]

Here it is. The stair and railing industry is in favor. What do you think?

 

[jar546]

This recent code update to the International Building Code (IBC) and International Fire Code (IFC) refines how stair riser heights are measured. Previously, the code specified that riser heights should be measured between the "nosings" (edges) of adjacent treads. However, this revision introduces more clarity by adding that when a single riser exists between landings, or in cases where the lowest riser is present at the start of the flight, the measurement should be taken from the nosing of the higher landing to a point one tread depth onto the lower landing. This update ensures consistency in measurement methods and supports safer design practices.

Key Points of the Update:

• Riser Height: Must be between 4 inches (minimum) and 7 inches (maximum) for most stairways. The revised language clarifies that, when relevant, the height of a single riser should be measured from the nosing of the upper landing to a point on the lower landing.
• Exceptions: These specifications still allow for certain exceptions, such as in spiral stairways, stairways connecting aisles, and specific conditions for residential and commercial buildings.

This added detail helps standardize riser measurements across various stair designs, enhancing clarity for architects, builders, and inspectors, particularly in complex stair configurations where landings may interrupt stair flights.

 

[steveray]

I think Tom was pushing this....