OSHA 10-Hour Construction ReviewScaffoldsMedium
A worker is using a pump jack scaffold. Which of the following is an acceptable material for the scaffold's work platform?
- APlywood sheets without reinforcement
- BUsed dimensional lumber (2x10) with visible knots
- CAluminum planks with visible dents and bends
- DLaminated veneer lumber (LVL) specifically designed for scaffold planks
Show answer & explanationAnswer & explanation
Correct answer: D. Laminated veneer lumber (LVL) specifically designed for scaffold planks
OSHA requires scaffold platforms to be made of scaffold grade lumber, fabricated planks, or equivalent. LVL specifically designed for scaffold planks meets these requirements, ensuring adequate strength and structural integrity.
Why the other options are wrong
- A. Plywood sheets without reinforcement are generally not strong enough or designed for scaffold platforms and would not meet OSHA standards.
- B. Used dimensional lumber with visible knots is likely compromised in strength and not considered 'scaffold grade' or safe for use.
- C. Visible dents and bends in aluminum planks indicate damage that compromises their structural integrity, making them unsafe.
Scaffold Platform Material Requirements
Acceptable materials for scaffold work platforms, ensuring they possess the necessary strength and integrity for worker safety.
- Scaffold grade lumber
- Fabricated planks (e.g., LVL)
- Must be free from defects
- Rated for intended load
Memory trick: Strong planks, no pranks!