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4AyBuiLdingermit.com <br /> a service of eCrtyGov.net Construction Tip Sheet 02 <br /> Residential Handrails <br /> This tip sheet reflects code requirements of the 2018 International Residential Code (IRC) with <br /> Washington State Amendments. <br /> Where Required <br /> Handrails are required on at least one side of each continuous run of treads or flight with four or <br /> more risers. <br /> Typical Details <br /> - - <br /> Handrails are continuous for _ - - <br /> the full length of the flight. - - <br /> Handrails may be interrupted -- - <br /> by a newel post at a tum. %� Wali \\ <br /> _,..:-,-- /.-'..-•--....-.....A...,,..... .....-.\ <br /> Handrails are -- <br /> required on not •-1 - .t :- ------------------- / <br /> less than one ' <br /> side of each Handrail ends returned <br /> continuous run of . J to the wall or terminated <br /> treads or flight FS in newel posts or safety <br /> with four or more \ terminals. <br /> risers. g ___.-._____._.j <br /> • <br /> i - <br /> --_-________ The height of the <br /> handraifis measured <br /> - -: vertically from the <br /> I sloped plane adjoining <br /> the tread nosing. <br /> Figure 1: Typical Handrail Elevation (IRC R311.7.8) <br /> — - The handrail may project <br /> a maximum of 4-1/2"into <br /> required stair width. 1, <br /> L - The grippable <br /> 1-1/2"minimum -----1---- - : perimeter dimension is <br /> 4"minimum and 6-1/4" <br /> �,1. maximum. <br /> - Circular handrails not lessL., ,,,..:i <br /> 1than 1-1/4"or more than 2" 1in diameter. ` <br /> rf <br /> ,,) `�-----�--The non-circular <br /> -F% ;1 i handrail cross section <br /> ,, `' /1 is 2-1/4"maximum. <br /> Figure 2: Type I Handrails (IRC R311.7.8.5) <br /> January 22, 2021 MyBuildingPermit.com I Residential Handrails 1 <br /> eCityGov.net <br /> 2005,'eCkyGovAkarxe <br />