The Ontario Building Code | Surface Finish of Ramps and Stairs
18.104.22.168. surface Finish of Ramps and Stairs
(1) The surfaces of ramps, landings and treads shall,
(a) have a finish that is slip-resistant, and
(b) if accessible to the public, have a colour contrast or a distinctive visual pattern to demarcate,
(i) the leading edge of the tread,
(ii) the leading edge of the landing, and
(iii) the beginning and end of a ramp.
(2) A tactile attention indicator conforming to Article 22.214.171.124. shall be installed,
(a) at the top of the stairs, starting one tread depth back from the edge of the top stair, and
(b) at the leading edge of landings where a doorway ="http://thehandyforce.com/doors/" title ="Toronto Door installer">doorway opens onto stairs, starting one tread depth back from the edge of the landing.
(a) are more than 10 m high, or
(b) serve a hotel.