Washington Administrative Code
Title 296 - Labor and Industries, Department of
Chapter 296-876 - Ladders, portable and fixed
Section 296-876-60075 - Wells

(1) You must make sure there is at least twenty-seven inches, but not more than thirty inches, from the centerline of the step or rung to the inside face of the well on the climbing side of the ladder.

(2) You must make sure the inside clear width is at least thirty inches.

(3) You must make sure the well:

(4) You must make sure the bottom of the wall on the access side is at least seven feet, but not more than eight feet, above the point of access to the bottom of the ladder.