How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
What is the longest stair run allowed?
Wednesday, October 24, 2018
The maximum length of a run of stairs is not measured in the number of risers, treads, or length of the stringer. It is defined by the International Residential Code (IRC) and Florida Building Code (FBC) as a maximum of 147 inches (12’-3”) of vertical height between floor levels or landings. That is an extremely long run, though, and most residential stairs will have an intermediate landing for that much height.
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Here’s links to a collection of our other blog posts about STAIR requirements:
• What is the minimum headroom clearance for stairs?
• Is a landing always required at the top and bottom of stairs?
• When is a railing required at stairs?
• What is the building code for the minimum height of stair steps (risers)?
• When is a nosing required on a stair tread?
• What is the building code requirement for receptacle outlets at stairs and stair landings?
• Are open stair risers acceptable?
• What is the steepest residential stair allowed?
• Why is a single step dangerous in a house?
• Do I need stairs at all exit doors from a mobile home?
• What is the lighting requirement for stairs?
• The stairs feel too steep. What's the building code?
• What do home inspectors check when inspecting stairs?
Visit our STAIRS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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