The bottom few treads and risers were removed to expose the stringers (the structural boards that give the stairs support). Two of the three stringers had rotted from being exposed to moisture. All though the basement floor was now concrete, it was dirt when the stairs were built. The moisture from the dirt had rotted the lower part of the stringers, causing a structural failure.

The rotted section of the stringers was removed and replaced with a new section. The new stringers were cut to match the rise and run of the existing stringers and then attached to the remaining upper part.

After the new treads and riser boards were cut to match the existing stringers and installed, the stairs were solid again. The consistent rise and run of each step allows the owners to use the stairs safely, and gives them peace of mind.