I’ve got a not quite 2 yr old deck installed by our builder. We have a problem with the stringers pulling away from the treads and risers. We first started noticing it last year, so I added some 3.5” deck screws to each board to try to secure them, but they’re pulling out as well. This is happening to almost all the treads and risers on both sides.
Just wondering at this point what the best course is? Is this repairable, or do I need to look at replacing the stairs?