Q: I returned home from a business trip last week and, walking up the stairs, one of the steps actually lifted up from the back as I put my foot on it, then flopped back into place as I continued up.

When you’re dead asleep and someone in your family sneaks downstairs for a late-night snack, the loud groan of a stair is jarring and annoying. Squeaky stairs are caused by wear and tear on the wooden ...

Squeaky, wobbly stairs are more than a nuisance; they can be hazardous if not repaired. Some stair problems are easy to fix. But because of the complexity of stair construction, severe problems often ...