How to Choose a Wi-Fi Extender for a Garage

It may, but dense masonry, metal and insulation can reduce the signal substantially. Check the router signal on the garage side before choosing an extender.

Place it where it still gets a reliable connection from the router, usually near the house-facing side rather than at the far end.

Use indoor equipment only in conditions allowed by its manufacturer. Detached buildings often need a wired or outdoor-rated network solution.

An extender is simpler when wireless signal reaches the garage. A wired access point can provide a more dependable link when you can run Ethernet.