Might call it a room layout if it's a single room (1:20 or 1:50), but if it's a whole floor plan (1:100) then yeah, floor plan. If you want to differentiate it from a GA, could be called floor plan: fixtures and fittings. I don't think there are universally agreed descriptions.
what's the english term for the plan drawing that show all the machines, furniture etc. of ie. a factory?