Under OSHA regulations, scaffolding platforms must be planked or decked to within what distance of the guardrail system?
Correct Answer
A) 14 inches
OSHA 29 CFR 1926.451 requires that scaffold platforms be fully planked or decked between the front uprights and the guardrail systems, with the space between the platform and uprights not exceeding 14 inches.
Why This Is the Correct Answer
OSHA 29 CFR 1926.451(b)(3) specifically states that scaffold platforms must be fully planked or decked between the front uprights and the guardrail systems. The regulation explicitly limits the maximum gap between the platform edge and the uprights to 14 inches. This requirement ensures worker safety by minimizing the risk of falls through gaps in the platform. The 14-inch maximum is a critical safety standard that contractors must follow to maintain OSHA compliance.
Why the Other Options Are Wrong
Option B: 24 inches
18 inches exceeds the OSHA maximum allowable gap and would create an unsafe condition where workers could fall through the opening.
Option C: 18 inches
12 inches is too restrictive and not the actual OSHA requirement, though it would be safer than the minimum standard.
Memory Technique
Think '14 for safety' - 14 inches is the maximum gap that keeps workers safe on scaffold platforms, any larger and someone could fall through.
Reference Hint
OSHA Construction Standards 29 CFR 1926 Subpart L - Scaffolds, specifically section 1926.451(b)(3) for platform requirements
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