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Scaffolding eTool

Planking Planking Quiz

  1. Either scaffold-grade or construction-grade lumber may be used on scaffolding platforms, as long as it meets OSHA standards.
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  2. All scaffold planking must be stamped "OSHA Approved".
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  3. You can't rely on a lumber grade stamp to tell if a plank is safe.
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  4. Splits in a plank do not affect its strength until they are at least 12-18 inches.
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  5. Unlike other lumber, scaffold-grade planks do not show checks and notches as they age.
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  6. Checks in lumber are splits that do not go all the way through the wood.
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  7. A scaffold plank that has been used as a mudsill should not be returned to service on a platform.
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  8. If paint, plaster, etc. have accumulated on one side of a scaffold plank, it should be turned over so as to present a clean work surface.
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  9. The longer the span of a scaffold plank, the greater the load it is able to carry.
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  10. A 10-foot scaffold plank is only allowed to deflect 2 inches, or 160th of its span.
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