Scaffold-grade lumber is meant to withstand forces not imposed on ordinary, construction-grade wood (which is only two-thirds the capacity of scaffold-grade). Using construction-grade lumber on a scaffold platform not only violates OSHA standards, but is also an unsafe practice and an invitation to a deadly incident.
Laminated Veneer Lumber (LVL) is one of the most common scaffold plank styles used on a jobsite requiring stagging. These laminated planks meet all conformance standards for OSHA and are tested rigorously by their manufacturers