Remove enough of the drywall to open the area under the shower and toilet.
Floor creaks under toilet.
Answer answer the fact that there is a squeak under the tile suggests that the wood underlayment subfloor is moving to some degree.
Clean the flange well or use a new one and install over the drain and new wood.
How to fix a rotten floor around the toilet.
You may need to scrape the flange with a small putty knife and use a wire brush to get it clean and free of any corrosion or debris.
How to replace a rotten floor in front of a bathtub.
Make sure to make your nails flush with the wood.
The bucket will catch any water that may be trapped in this area.
Peel back the flooring around the fixture and you will.
Rather than tear into the finished floor i suggest that you start in the basement ceiling where the soft spot is located.
You may not think of your floor as vulnerable but in the bathroom it is.
Repair floor under toilet nail the plywood to the floor joists.
A spongy floor around the toilet is a strong indication that the subfloor has absorbed water.
Place a bucket directly under the soft spot and open a small hole using a keyhole saw.
With some effort you can slide them back tight again.
A laminate floor in a friend s house seems to be possessed overnight gaps appear in the floor where one piece butts up against another.