Self stacking pans are an easy solution for allowing your pizza's to proof. Some shops prefer to sauce and cheese the pizza, and let them raise before refrigerating. This allows you to prepare the pizza quickly on those busy Friday nights. Just grab one out of the fridge. Neatly stacked, and ready to go. Hard coat 5000 series pans are 2" deep with 1-1/2" inside pan when stacked. Bottom of one pan nests 1/2" into the top of the pan below. Heavy 14 gauge anodized aluminum allows even heat distribution for a uniform bake.