It is very important to bake/cure the stones initially, Thank you. Please note pizza oven stones with come with baking/curing instructions with the stones on the process of how to bake/cure the new stones initially with a gradual increase of heat. ALL STONES SHIP BY TRUCKING COMPANY AND ARE PROFESSIONALLY CRATED. FOR A QUOTE, PLEASE SEND THE MAKE AND MODEL # FOR YOUR OVEN, QUANTITY OF STONES AND BUSINESS SHIPPING ZIP CODE AND WE’LL GET YOU A QUOTE INCLUDING SHIPPING. Fits Blodgett 901, 911 & 931 Size (inches) 20″x33-1/8″x1.5″ WE HAVE BAKING OVEN STONES TO FIT ANY MANUFACTURER OF PIZZA OVEN FROM BAKERS PRIDE, BLODGETT, MARSAL, GARLAND, MONTAGUE, BARI, ZESTO, PEERLESS, REVOLVING OVENS AND MUCH MORE! STONES ARE ALSO AVAILABLE FOR MOST CONVECTION OVENS, REVOLVING OVENS AND COUNTER TOP OVENS.