Wash. Admin. Code § 296-874-20028
(1) You must provide a stair rail that meets all of the following on each side of a scaffold stairway:
(c) Is at least twenty-eight inches (71 cm) but not more than thirty-seven inches (94 cm) high.
| Note: | Stair rail height is measured from the upper surface of the stair rail to the surface of the tread, in line with the face of the riser at the forward edge of the tread. |
(2) You must make sure stair rail systems and handrails have:
(a) A surface that prevents employees from:
(3) You must make sure handrails, and top rails that are used as handrails:
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-874-20028, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-01-054, § 296-874-20028, filed 12/7/04, effective 3/1/05.]