I needed a larger baking /pizza stone. I couldn't find a larger size needed, and what i did see was pretty expensive.What i did was go to my local cement block & brick outlet and bought about 12-15 firebricks.They have regular brick size any thinner ones, like the ones they use to line the inside of woodstoves.They were not very expensive and work very well.Now i have a large baking surface for a large pizza or a few loafs of bread The way bluestone breaks up from winter freezes and thaws, i can just imagine what would happen under high heat..!