Ramps, runways, and inclined walkways must conform to the following provisions:
(1) Be at least eighteen inches wide; and
(2) Not be inclined more than twenty degrees from horizontal and when inclined, they must be cleated or otherwise treated to prevent a slipping hazard on the walking surface.
Note: | See WAC 296-880-20005 for guarding ramps, runways, and inclined walkways that are four feet or more above the ground or lower level. |