Integrated or panel-ready units (surprise: they’re synonyms!) don’t come with a stainless steel door finish — they arrive without panels. This means you can choose whichever panel finish you want: stainless steel, wood paneling, and glass paneling, to name a few. They’re typically interchangeable, except for glass door options — glass paneling must be chosen at time of purchase. Otherwise, switching in glass requires completely replacing the door with a glass panel door in the future.