Section 6.23. Window jack scaffold

Latest version.

(a) Use. Window jacks shall be constructed to sustain a working load of 200 pounds with a safety factor of four and shall be used only for the purpose of working at the window through which the jack is placed. The placing of planks between one window jack and a jack in an adjacent window is prohibited. Window jacks shall not act as the supporting elements for other scaffolding.
(b) Persons permitted. Not more than one person shall be permitted to be on a window jack scaffold at any one time.
(c) Approval. Window jacks shall be of an approved type.

                    
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