I was looking at some cement board for a cpl of tiling jobs in my home I'll be doing once the weather warms up. I'm going to tile both the bathrooms in my house first. My guest bathroom is smaller and the master is not that big of area because of having a garden tub and a standup shower etc. My question: I see that durock etc come in 3x5 at lowes. I was wondering what is the best way of cutting it or installing it to reduce movement in the floor.