Most garages only have one or two outlets at most. But let’s be serious now. Why would a builder only install one outlet ?. Simple, because he’s only doing what the minimum code requires. We have a choice here. Hire two contractors, a carpenter and an electrician. We could either open the walls up and start running wires and installing boxes. Or we could surface mount outlets with metal boxes and conduit. It’s way easier and cost effective to surface mount. Hey, let’s face it, it’s a garage right. I don’t think anyone of us would like this inside our house.