For stage lifts, what is the minimum live load capacity required per square foot of floor area of the platform?

The correct choice for the minimum live load capacity required per square foot of floor area for stage lifts is 75 lbs per square foot. This requirement is established to ensure the safe operation of stage lifts, accounting for the weight of performers and equipment that may be present during a performance.

Stage lifts typically carry additional dynamic loads, such as performers moving around on the platform or equipment being maneuvered. A live load capacity of 75 lbs per square foot allows for an adequate safety margin to support various activities that occur during performances without compromising safety.

Adhering to this standard helps to minimize the risk of structural failure or accidents due to overload, ensuring reliability and safety during shows or events. Other options indicate higher or lower load capacities that do not align with established safety codes and standards for stage lifts. Thus, the established figure of 75 lbs per square foot is critical to ensure performance safety and compliance with regulatory requirements.