The minimum allowable clearance for walkways installed before 1997 is 600mm. After 1997 the clearance is 900mm. The Saskatchewan Occupational Health and Safety regulations are sited below.
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The Occupational Health and Safety Regulations,
2020 being Chapter S-15.1 Reg 10 (effective April 1, 2021) as amended by Saskatchewan Regulations 31/2021
OCCUPATIONAL HEALTH AND SAFETY, 2020 S-15.1 REG 10
Travelways 16‑3(1) An employer, contractor or owner shall ensure that every travelway: (a) is strong enough to withstand any traffic to which the travelway may be subjected; (b) has secure footing for workers and adequate traction for vehicles or equipment; and (c) is at least: (i) 600 millimetres wide, in the case of travelways installed before July 1, 1997;
and (ii) 900 millimetres wide, in the case of travelways installed on and after July 1, 1997. (2) An employer, contractor or owner shall ensure that every travelway that may give rise to a hazard described in subsection 9-2(2) is provided with a guardrail.
31 Dec 2020 cS-15.1 Reg 10 s16-3
-OHS Insider Staff