The Ontario Building Code | Water Closets
22.214.171.124. water Closets
(1) A water closet described in Clause 126.96.36.199.(1)(c) or (10)(c) or 188.8.131.52.(1)(d) shall,
(a) be equipped with a seat located at not less than 430 mm and not more than 485 mm above the finished floor,
(b) be equipped with hand-operated flushing controls that are easily accessible to a wheelchair user or be automatically operable,
(c) be equipped with a back support where there is no seat lid or tank, and
(d) not have a spring-activated seat.
(2) Hand-operated flushing controls required by Clause (1)(b) shall be operable using a closed fist and with a force of not more than 22.2 N.