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2021 Washington State Building Code <br /> 1014.3 Handrail Graspability <br /> Required handrails shall comply with Section 1014.3.1 or shall provide equivalent graspability. <br /> Exception:In Group R-3 occupancies;within dwelling units in Group R-2 occupancies;and in Group U occupancies that are accessory to a Group R-3 occupancy or accessory to individual <br /> dwelling units in Group R-2 occupancies;handrails shall be Type I in accordance with Section 1014.3.1,Type II in accordance with Section 1014.3.2 or shall provide equivalent graspability. <br /> 1014.3.1 Type I <br /> Handrails with a circular cross section shall have an outside diameter of not less than 11/4 inches(32 mm)and not greater than 2 inches(51 mm).Where the handrail is not circular,it shall <br /> have a perimeter dimension of not less than 4 inches(102 mm)and not greater than 61/4 inches(160 mm)with a maximum cross-sectional dimension of 21/4 inches(57 mm)and <br /> minimum cross-sectional dimension of 1 inch(25 mm).Edges shall have a minimum radius of 0.01 inch(0.25 mm). <br /> 1014.3.2 Type II <br /> Handrails with a perimeter greater than 61/4 inches(160 mm)shall provide a graspable finger recess area on both sides of the profile.The finger recess shall begin within a distance of 3/4 <br /> inch(19 mm)measured vertically from the tallest portion of the profile and achieve a depth of not less than 5/16 inch(8 mm)within 7/8 inch(22 mm)below the widest portion of the <br /> profile.This required depth shall continue for not less than 3/8 inch(10 mm)to a level that is not less than 13/4 inches(45 mm)below the tallest portion of the profile.The width of the <br /> handrail above the recess shall be not less than 11/4 inches(32 mm)to not greater than 23/4 inches(70 mm).Edges shall have a minimum radius of 0.01 inch(0.25 mm). <br /> Exported b QUp od-s https://up.codes <br /> CIRCULAR CROSS SECTIONS NON-CIRCULAR CROSS SECTIONS <br /> Non-circular cross sections must have rounded les <br /> and meet derumeter and cross-section dimensio <br /> Other pro(les meeting these criteria are permit <br /> Rounded edges <br /> El <br /> -UY r;n �y 1-'Q- <br /> *)d _ Type I <br /> 4--6-1 ra"perimeter <br /> It-v2'mto zi <br /> 1-1/2-min <br /> (less?B'for each 1r2-additional <br /> permeter dimension above c( <br />