How do I install floor tiles of different thicknesses together?

Question

I want to install a decorative granite floor tile in the middle of my porcelain field tiles but it is a little thicker than the porcelain. Can I do this by varying the mortar or do I have to adjust the cement board thickness where the granite will be? I think granite needs a different mortar too. I really like this look so can someone please help me? Thanks!!!

Answer 1

Yes, adjust (reduce) the cement board thickness under the granite to match the thickness of your porcelain field tiles.