Bathroom Floor Tile Questions

BaconK5

I have a small (7x5) bathroom that currently has those stick down adhesive backed vinyl tiles in it. I would like to replace the floor with ceramic tile as a start to a bathroom remodel but have some questions.

1. I was planning to remove the tile and then lay cement backerboard down over it as a solid base for the ceramic. I then heard that it is too hard to get the tile and adhesive off and that I should tile over the vinyl. Input?

2. If I get the vinyl up and put a cement board down (3/8") along with tile (1/4"-3/8") will I have trouble with the toilet sealing on the wax ring correctly or with the tile/carpet transition under the door (I have clearance)?

3. Should I take the tile and the wood base out and replace with just a cement board?

Any help would be greatly appreciated!

rusty baker

Need a lot more info. What thickness is the plywood on the floor? What size floor joists do you have? What is the distance between them? How far do they span?

__________________
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Semi-Retired Installer
Installing since 1973

BaconK5

Im going from memory, but I believe the plywood is 1/2", the joists are 2x10s and I think the spacing was 12 or 16"