What is the minimum clear width required for scaffold platforms according to OSHA standards?
Correct Answer
D) 18 inches
OSHA requires scaffold platforms to be at least 18 inches wide. Platforms may be narrower only when the employer can demonstrate that wider platforms are not feasible and that the narrower platform provides adequate protection.
Why This Is the Correct Answer
OSHA 29 CFR 1926.451(f)(1) specifically mandates that scaffold platforms must have a minimum clear width of 18 inches. This width requirement ensures adequate working space for construction workers while maintaining safety standards. The 18-inch minimum provides sufficient room for workers to move safely while carrying tools and materials. This is a fundamental OSHA scaffold safety requirement that general contractors must enforce on all job sites.
Why the Other Options Are Wrong
Option B: 24 inches
16 inches is below the OSHA minimum requirement and would not provide adequate working space for safe scaffold operations
Option C: 20 inches
20 inches exceeds the minimum requirement, which while safer, is not the minimum standard specified by OSHA
Memory Technique
Think '18 and up' - scaffold platforms must be AT LEAST 18 inches wide, making 18 the minimum standard to remember
Reference Hint
OSHA Construction Standards 29 CFR 1926 Subpart L - Scaffolds, specifically section 1926.451(f)(1)
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