PDFWAC 296-876-40020
Set-up.
(1) You must set up nonself-supporting ladders at a safe angle. The ladder is set at the proper angle when the horizontal distance from the top support to the foot of the ladder is approximately one-quarter the working length of the ladder.
(2) You must set up job-made ladders with spliced side rails so that the horizontal distance from the top support to the foot of the ladder is not greater than one-eighth the working length of the ladder.
(3) You must set up the top of a nonself-supporting ladder so that both side rails are supported, unless the ladder is equipped with a single support attachment.
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[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and chapter 49.17 RCW. WSR 20-09-146, § 296-876-40020, filed 4/21/20, effective 10/1/20; WSR 14-09-095, § 296-876-40020, filed 4/22/14, effective 7/1/14. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-20-068, § 296-876-40020, filed 10/4/05, effective 1/1/06.]