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804 Safe Scaffold Erection and Inspection
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Inspecting Window Jack Scaffolds

A window jack scaffold is a supported scaffold consisting of a platform supported by a bracket or jack that projects through a window opening.

When inspecting these scaffolds, check for the following:

  • Verify scaffolds are being securely attached to the window opening.
  • Verify scaffolds are being used only for working at the window opening through which the jack is placed.
  • Check to make sure window jacks are not being used to support planks or other elements of scaffolding placed between one window jack and another.
  • Verify not more than one employee is allowed to work on the scaffold at any one time.

Knowledge Check Choose the best answer for the question.

4-6. How many employees are allowed work on a window jack at the same time?