Our house is old. And not level in the kitchen. Everything is out of square to. We manage to work with it so far. I have a question about leveling my kitchen floor before I put my cabinets in. It is off in one area by 1 1/2 inches. What is the best way to fix this. It slopes down by the cabinets and the toe kick will not cover the bottom of the cabinet. I know there is the self leveling mix. They said not to use it to even out our amount. First do cement board. Can anyone make a suggestion?