Old bathroom in an old carriage house. I asked my landlord if I could lay down vinyl self stick tiles if I so choosed.

Currently the bathroom floor is a piece of sheet vinyl with a tile print on it. Underneath the sheet vinyl is planks of wood about three inches thick. They are very uneven. There are places where the vinyl is punctured and it is peeling around the toilet.

My questions are:

Will it stick?

What size tile should I get?

The room is about 45 sq ft. I would like to also minimize the fact that the walls are not exactly squared. I would assume this would best be solved with a smaller 6x6 tile. What do y'all think?

Any other tips?

Thanks!