Which of the following statements about metal decking is correct?

The statement that it should be laid tightly but not secured is correct. Metal decking needs to be installed in such a way that panels fit snugly together to create a continuous surface. This tight placement helps ensure structural integrity and minimizes gaps that could lead to safety hazards. However, it is important to note that the panels typically won't be permanently secured until later in the construction process, which allows for adjustments and proper alignment without compromising overall safety.

In the context of building safety, leaving the decking unsecured just after placement allows for easier rework or modifications if other construction elements need to be adjusted. Subsequently, once the decking is in its correct final position, it will be fastened securely to prevent any movement that could lead to accidents or structural failures. This approach balances the need for workflow efficiency with the imperative of maintaining a safe construction site.