JonJackjon t1_j2b0dz4 wrote on December 30, 2022 at 10:47 PM

Can you access the floor from underneath?

I had a similar problem, I was able to drill up from below into a few of the culprit boards.

I had to tap the hardwood floor (from below) and tighten with a #10 machine screw.

funlol3 OP t1_j2b1wft wrote on December 30, 2022 at 10:57 PM

No I can’t unfortunately. Floor below has plaster ceilings

dhutch01 t1_j2csfjr wrote on December 31, 2022 at 7:41 AM

What length of #10 screws did you use?

JonJackjon t1_j2f26fm wrote on December 31, 2022 at 8:06 PM

I don't recall, however at the time I figured I went about 1/2 to 3/4 of the way through the hardwood. As I was drilling (very slowly) my wife was watching the surface for any indication I was too close to the surface.

To get an idea of the thickness I did measure the floor thickness where our hot water baseboard heat went through the floor.