The full escalator with cutout will cut the same hole in both the bottom and top floor and must be placed on the level below where you want the escalator to show. It must be elevated to (room height+floor thiskness)-66cm. If you align escalators on top of each other for multiple floors the holes for bottom and top match each other. That way you don't have the problem of a bottom hole where it is not supposed to be while you can still use full escalators that cut holes. You can also use the full escalator that does not cut holes and manually create the hole in the top floor. Keep in mind the structural construction of floors when you use an escalator. It's heavy machinery that most likely requires support beams.