Accessible entrance doors and doorways shall have a minimum clear opening of 32 inches. The accessible entrance may be any entrance at the front, side, back or garage of the dwelling that is served by an accessible route. The accessible route shall be no less than 36 inches wide with a slope not to exceed a ratio of one inch rise to every 20 inch horizontal run. If a patio door serves as an accessible entrance, a standard six-foot sliding patio door assembly shall be deemed to be sufficient to comply with the requirements of this subsection. The threshold of such doors shall not exceed 1/2 inch or, in the case of a sliding door, 3/4 inch.
K.S.A. 58-1402