A fully planked or decked floor or nets must be maintained within what limit under any erection work being performed?

The limit for maintaining a fully planked or decked floor or nets during erection work is crucial for ensuring safety on construction sites. The correct choice indicates that this requirement is set at a limit of 2 stories or 30 feet. This height specification is based on safety regulations that aim to prevent falls, which are a major hazard in construction environments.

By setting the limit at 30 feet, it recognizes the potential dangers associated with working at this height, providing workers with a secure platform to operate safely. The use of fully planked floors or nets helps catch objects or personnel that might fall, reducing the risk of injury and increasing overall worksite safety.

Height safety standards are put in place by organizations such as OSHA (Occupational Safety and Health Administration) to ensure that as construction activities progress upwards, the necessary precautions are taken to protect workers at height. Hence, the specified limits align with established safety practices and help create a safer working environment.