i am going to tile my bathroom floors , and the walls around the shower stall and bath tub.. what do i use where and what is the difference.
For your shower you want a cement board that is all concrete like Durarock. It is 1/2 a inch thick. I believe that may be what hardi backer is. Most of these boards only are cement on the outside with a wood core to save on cost. For the floor any sub floor would work. I have seen many bathrooms with green sheet rock or a sub standard board and they all failed. The only thing I have ever seen hold up is Durarock. So check what they actually are. If they are all cement they will say so and that is what you want. Most of the boards for bathrooms are wood coated with a water proof resin that will fail.
I usually use Hardiboard on walls, but will use either on floors...I don't particularly like the way wonderboard & similar products crumble, especially with multi-cut corners. Good luck...
