Our house, built in 1999, has a first floor laundry room that has a
squeaky floor. You can feel the tile (vinyl floor in there) give a
little bit when you walk on a certain spot.
When doing some work in the basement, I decided to dig into the issue
finally. The washroom is over the crawlspace - about 4 feet of room
there to work in, so I have options.
What I found as the problem is that the subfloor (looks like 1/4 or
1/2" plywood sheets) was damaged before installation. There are spots
on the plywood sheet where it looks as if a pieces of the plywood were
gouged out or just chipped out. So in these "weak" areas, there is no
consistent support from the joists under the floor. So while the
floor is fine on each side of these spots, on those spots there's like
a 1/4" space, hence the "give" when walking up there.
I tried shims, but they just don't seem to be working very well.
I had considered simply taking a 2x4, wedging it vertically as a
support between the subfloor and the concrete slab of the crawlspace.
But considering the crawlspace has some room for me to work in, and I
am starting to use it to store things, I was wondering if there's some
other option that will not leave me with a post coming down to the
Thanks for any ideas.