I have the need to make a multi-story building. The initial level had one staircase and making the second floor was fairly straight forward. In creating the third level I had a much more difficult time. The floor between levels two and three require three openings: two stair cases and one large cargo opening. When I build this floor I had to use many more pieces and I’m concerned that they are all not perfectly level.
Is there an easier and more precise way of making a floor with so many openings?
Thanks in advance