(1) You must make sure not to tie or fasten ladder sections together to make longer ladders unless:
(a) The ladder manufacturer endorses this type of use; and
(b) You have hardware fittings specifically designed for this purpose.
(2) You must make sure each section of a multisection ladder, when fully extended and locked in position to be used, overlaps the adjacent section as indicated in Table 2, Minimum Required Overlap for Extension Ladders.
Table 2
Minimum Required Overlap for Extension Ladders
If the ladder size (feet) is: | Minimum required overlap (feet) for a two-section ladder is: |
Up to and including 36 | 3 |
Over 36 up to and including 48 | 4 |
Over 48 up to and including 60 | 5 |
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050,
49.17.060, and chapter
49.17 RCW. WSR 14-09-095, § 296-876-40045, 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, § 296-876-40045, filed 10/4/05, effective 1/1/06.]