So Lets Shaft Our Farmers.....
News2 mins ago
No best answer has yet been selected by amaltman47. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Totally agree with buildersmate who usually gives sound advice. I would just add that you can't rely on ceilings being straight or level either.
Starting at the bottom allows the batten to "take the weight" of the tiles which is an absolute must for larger tiles. I never buy tile spacers, they provide joints which are far too uncompromising. You will find that some tiles are very slightly bigger than others which will throw your horizontals and verticals out. This is why I say don't buy tile spacers. I use scissors to cut a load of one inch squares of cardboard from the tile box and use these between the tiles "eyeing in" the joints checking every other course with my spirit level.
Also, if you go to a "Topps Tiles" store you can get a free video.