baking stones, baking tiles means: Placed on the lowest shelf of the oven and heated with the oven, a heavy, thick, rectangular, or round ceramic, or stone plate. These stones replicate the baked qualities of brick floors in commercial pizza and bread ovens. The baking stones are used to bake the items. Also called a pizza stone. Baking tiles can be used in the same way as a baking tile, however, they are unglazed, thick quarry tiles that measure 8-12 inches by 12 inches. (in Cooking Dictionary)