Choosing a WiFi Booster for a Metal Building

It can if the booster receives a usable signal inside the building. Metal walls and roofs may weaken the incoming signal, so a device placed deep in a dead zone may not help.

Place it near the side or opening where the router signal enters, then verify its link before expecting coverage farther inside. A wired access point is more reliable when the building blocks that signal.

Mesh can help when nodes have a viable connection between them, but metal barriers may disrupt wireless backhaul. Consider wired Ethernet between nodes where practical.

For a nearby structure, Ethernet to an indoor access point is a straightforward option. For a separate building farther away, evaluate a point-to-point bridge with suitable line of sight and outdoor-rated equipment.