Squeaky floors can be incredibly annoying. Fortunately, they're also relatively easy and inexpensive to fix. Most of the time floors squeak because the plywood subfloor is no longer resting on the joists in some spots, so every time you step on a loose spot, the plywood then rubs against a popped up nail. If you're working on a squeaky floor that's on the second floor, you have to find a way to silence it from above. Below are some suggestions for how to accomplish that task.
