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(e) The floor on the inside and outside of each doorway <br />shall be at a grade notngreater than two (2) per cent <br />for a distance of five feet and shall extend one (1) <br />foot beyond each side of the door. <br />(f) In the case of two -leaf doors, each leaf shall be at <br />least thirty -six (36) inches wide. <br />SECTION_6 -22... STAIRS THAT MUST BE USED BY THOSE WITH DISABILITIES <br />OR THE AGED. <br />There shall be at least one set of stairs, between each floor of <br />a building, which conforms to the requirements of Section 6 -22. <br />(a) Steps in stairs that might require use by those with <br />disabilities or by the aged shall not have abrupt <br />(square) nosing. <br />(b) Stairs shall have handrails thirty -two (32) inches high <br />as measured from the tread at the face of the riser. <br />(c) Stairs shall have'at least one handrail which shall <br />extend at least six (6) inches beyond the top step <br />and beyond the bottom step where there is a continuing <br />wall. <br />(d) Steps should, wherever possible, and in conformation with <br />existing step formulas, have risers that do not exceed <br />seven and one -half (7�) inches. <br />(e) Where open risers are used, they shall have a partial <br />riser of no less than two (2) inches in height where the <br />top of the tread and the bottom of the riser join, to <br />prevent canes, crutch tips and feet from slipping through. <br />Open riser stairways not located between walls shall have <br />side skirt boards of not less than two (2) inches in <br />height. <br />SECTION 6 -23 FLOORS INTENDED TO BE USED BY THE PUBLIC. <br />(a) If the floors of a given story of an individual building <br />are not of a common level, the physically handicapped persons <br />shall be provided access to and usability of the primary <br />uses and purposes of the building through the construction <br />of ramps or by other means which the wheel -chair person <br />who has the full use of both arms can negotiate without <br />assistance from other persons. <br />(b) Floors with inclines greater than five (5) per cent <br />shall be built in accordance with the specifications <br />for ramps as spelled out in Section 6 -24 of this Chapter. <br />(c) Floors shall have slip resistant surfaces at least from <br />the public doorways to major points of pedestrian attraction <br />such as elevators, information desks, other public doorways <br />and hallways. A floor not made of a slip resistant material <br />shall be in accordance with this sub - section if-treated <br />and maintained with a slip resistant wax or some other <br />like product. <br />am <br />