I was eyeing a rectangular pizza stone on Amazon that's 14x16. I measured my oven's racks, and they're 14.5" deep. Do I need to buy a smaller stone? I wasn't sure how much room I needed to have between the stone and the oven door. I have a gas oven.
Also, do you really need to preheat for an hour to get good results? Or will less time suffice? I'm wanting to use a stone for gluten-free homemade pizza and bread if that makes a difference. I've never made homemade pizza crust before (gluten filled or otherwise!) and only used mixes for gluten free bread, so this is all uncharted territory for me.
Oh, one more thing. Can you use a pizza stone on both oven racks at the same time and get good results for both pizzas? I have 4 kids, so I always think in high quantity!