What aspect of a load must be clearly marked when rigging scenery?

When rigging scenery, it is crucial for the weight and center of gravity to be clearly marked. Understanding both the weight and center of gravity directly impacts the safety and effectiveness of the rigging process. The weight of the load determines the appropriate rigging equipment, such as the type and size of ropes, chains, and hardware needed to safely support and move the scenery. If the weight is not accurately known, there is a risk of overloading the rigging equipment, which could lead to failures and accidents.

Additionally, knowing the center of gravity is vital for balanced rigging. Scenery often has an uneven distribution of weight, and locating the center of gravity helps to ensure that the load is rigged in a way that it remains stable while being lifted and moved. Proper marking of both aspects ensures that all personnel involved in rigging can work safely and effectively, mitigating risks associated with improperly balanced or excessively heavy loads.