Hey team, I have a 75-year-old house and lots of the floorboards on the main floor are creaky. I can feel a few of them travel when I walk on them. I’ve seen these kits with snap-off screws that secure the board to the joist and then snap off just below the surface. Do they work? Is there a better solution?

The basement ceiling is unfinished, and I’ve read about shimming the loose boards from below. From the basement I see diagonal boards and then subfloor on top of that, so I’m not sure how I would shim anything. Thanks for any help you can offer!