Possible to install W/D? Full timers. First RV.

See, we're still new to everything. We were solely set on a travel trailer, then someone talked us into (fairly easily) into 5th wheels. They seemed to be better for full-time since they were bigger and about the same price range. I didn't know toy haulers were even an option as far as full-time and haven't even looked at them. I'm assuming the "garage" is all insulated and can be used as another huge room?