Sims 2 Help. Building Stairs?

Question

Hey guys. So Im trying to put stairs to connect to the upper level. The house did not come with a second level so i just put walls and flooring on it. Then when I go to build stairs and try to place it, it never turns green. What am I doing wrong and how do i fix it?

Answer 1

There needs to be an opening in the ceiling or else your Sim would bump his/her head trying to get upstairs.

Answer 2

There needs to be an opening in the ceiling or else your Sim would bump his/her head trying to get upstairs

just deleate a patch of the tiles  and put the stairs there !!!!!