https://www.homebuildingandrepairs.co... Click on this link to learn more about stair building, design and home repairs. Here's another problem created by building designers, doityourselfers and stair builders and it usually has something to do with the top section of the deck where it meets with the stairway and there's either a nosing or nono's. I'm guessing that you won't have to look very long before you find the stairway built like this in your area. I see them all the time and it's usually an extremely easy problem to fix, once you're aware of it.