Tiling a mirror to the wall

[Buzzby75]

Hi

Was looking to tile my bathroom, and was looking to tile a mirror to the wall amongst the tiles.
I am using 15cmx15cm tiles and would like the mirror to be 6 tiles wide by 3 tile high. (900mmx450mm).
Just a couple of quetions really:

What size should the mirror be exactly allowing for grout as well.
What should I use to stick the mirror to the wall, I'm guessing not grout.
What thickness should the mirror be to be flush with the tiles 6mm or 4mm?

Many thanks

Buzz

 

[lancenotalot]

If you tile the wall and leave an opening for the mirror you will then have an exact size to work too.
Dont use tile adhesive to fix it unless it suggests so in mirror manufactures docs,I used adhesive on one and it made stains through the backing so when looking at mirror you could see streaks.
Thickness of mirror depends on thickness of tiles allowing for adhesive.