I am planning on putting tile in my tiny 23 sq foot bathroom. It is a
1946 home in San Diego. I'm a first time tiler and it seems a bit
daunting. From what I can tell by peeling up an edge on the current
thin vinyl floor, it looks like hardwood floors under there - just like
in the rest of the house.
So, if I put backer board (hardiboard, etc) down, then mortar, then
tiles on top of that, the floor will be somewhat high compared to the
rest of the house, I may need to chop off some of the bottom of the
bathroom door, etc. Not sure exacly how high, but the smallest backer
board is 1/4" and the 12" square tiles I just got are at least 1/4"
thick I'm sure...
Is it ok to just use mortar on top of the wood floors (no backer
board), so that my tiles won't be super high? Plus I want to istall a
new toilet and I don't want it 10 feet off the ground, hahaha...
Speaking of which, my old 1947 Kohler toilet has 4 screws instead of
the standard 2 - not sure what's up with that?
Or do I need to tear out whatever wood floors are in there (not sure
how thick that wood is) and install 5/8" or 3/4" plywood instead, put
backer board on top of that, then mortar and tiles...