Dave Plowman wrote in message ...
In article ,
Slugsie wrote:
I'm in the planning stage of remodelling my bathroom. I want to tile the
floor, and have been given enough tiles to do the job. The only slight
problem is that the tiles are 30cm a side, and I've been warned that if
the floor isn't 100% stable they'll be liable to crack.


My bathroom floor is 19mm T&G pine. I have had tiles (300mm nominal
square) laid. The guy got me to lay 9m ply over the whole floor
screwed down at 150mm centres. He was quite insistent that it should
be 9mm at a minimum. For all the cost, effort, difficulty and time I
reckoned it was far better to get someone in to do it.

Rob