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When it comes to residential stair standards, the 2021 International Residential Code (IRC) establishes minimum requirements for stairs to insure a level of safety to the public. Several components are looked at such as stair width, headroom, riser and tread heights.
IRC, IBC, ADA: The International Residential Code, the International Building Code, and the Americans with Disabilities Act require handrails to be at least 34 inches high and at least 38 inches above the stairs.
IBC Sections 1011, 1014, 1607, and 2407 all address various handrail code requirements and specifications. Here are five critical IBC code requirements you should know along with our comprehensive list of IBC handrail code references.
If you want to learn all of the residential stair codes, you are in the right place! In this guide, you'll learn... The top 15 key staircase code requirements; Minimum handrail height code; Stair landing code; Tread depth and nosing codes; And much more
Generally, the minimum stair width is 44 inches, unless the stairway serves an occupant load of less than 50, in which case the minimum width is 36 inches.
This article series explains and illustrate the requirements for graspable handrails & railings used inside or outside buildings, including guardrails, hand railings on steps and stairs, and stair rails or stair guards for both interior and exterior stairways.
Two Handrails. If a staircase has two handrails, one on both the right and left sides, the stairs above the handrail height must be a minimum of 27 inches wide. At or Below the Handrail Height. According to the IRC code, handrails should be no less than 34 inches tall and 38 inches tall.