CSLB General Building (B)SafetyHard

When working on a supported scaffold, what is the maximum permissible distance between the front edge of the platform and the face of the work, according to Cal/OSHA, to prevent objects from falling and to ensure worker stability?

  1. A8 inches
  2. B18 inches
  3. C14 inches
  4. D12 inches
Show answer & explanation

Correct answer: C. 14 inches

Cal/OSHA requires that the front edge of all platforms on supported scaffolds shall be no more than 14 inches from the face of the work, unless guardrails are erected along the front edge and/or debris nets are installed.

Why the other options are wrong

  • A. 8 inches is a common distance in some specific scaffold types or for fall protection for objects, but not the maximum for the platform edge.
  • B. 18 inches is too wide and increases the risk of falls and falling objects.
  • D. 12 inches is often cited in other regulations but Cal/OSHA specifies 14 inches for supported scaffolds.

Scaffold Platform-to-Work Distance

Cal/OSHA limits the distance between the front edge of a supported scaffold platform and the face of the work to a maximum of 14 inches.

  • Maximum 14 inches.
  • Prevents falls through the gap.
  • Reduces risk of falling objects.
  • Exceptions if guardrails or nets are used.

Memory trick: Scaffold Gap is 'Fourteen' inches, no more.

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