When using a jack, where should the blocking be placed?

Blocking should be placed in between the jack and the load to provide a stable and secure support once the load is lifted. This positioning is critical because it ensures that the load is adequately supported after the jack has reached its lifting height, preventing any sudden drops or shifts that could cause accidents or injuries. By placing the blocking in this way, it acts as a safety feature that absorbs the weight of the load and helps distribute the forces more evenly.

Properly using blocking is an essential part of load handling and rigging safety protocols. If blocking were placed in alternative locations, such as above the jack or beside the load, it wouldn't effectively provide the necessary support once the lifting is completed. Similarly, placing it below the load wouldn't be appropriate as it would allow the load to rest directly on the jack without any support in place during the lift. This could lead to dangerous situations if the jack were to fail or shift during the operation.