A modular scaffold platform is designed to support a maximum intended load of 1,500 lbs (workers, tools, and materials). According to OSHA standards, what must be the ultimate failure load of the scaffold components?

A freestanding rolling scaffold tower has a base width of 5 feet. What is the maximum height the top work platform can be erected before outriggers or wall ties are legally required to prevent overturning?

A masonry crew is working on a heavy-duty scaffold platform measuring 5 feet wide by 10 feet long. They place two pallets of bricks weighing 1,200 lbs each on the platform, along with two workers weighing 250 lbs each (with tools). Determine if the scaffold is overloaded.

A worker erecting a tube-and-coupler scaffold places an unmarked wooden plank spanning two ledgers. The plank overhangs its support by 24 inches on one side. A mason steps onto the overhang to reach a corner, causing the plank to instantly tip up like a seesaw, dropping the worker 15 feet.

A frame scaffold is erected adjacent to a building foundation excavation. The metal legs are resting directly on soft, recently backfilled soil. Following a rainstorm, one leg sinks 6 inches into the mud, causing the entire frame to rack, break its cross-braces, and collapse against the building.