THis will be done in the powder room. Also, I am planning not to use backerboard because the tiles will be 9 x 12
I recently tiled a room of approximately the same size. Not including the cost of the tile, it cost about $150.00. I used quick set, which costs about $40 per tub. One tub, if used properly, should be enough. If the floor on which you are installing the tile is not concrete, you should stronly consider using the backing board. This will help reduce the chances of the grout, and tile from cracking. If installed on a wooden (plywood) floor, the floor can flex, resulting in cracking of the tile and grout.
