What is the spacing between full size sheet pans if all 10 are used at once. Also, what are the dimensions of "full size sheet pans". I am looking for a bakery oven that can bake around 36 standard sandwich loaves at a time and have been offered an Alto Shaam Gas Combitherm that takes 10 full size sheet pans, but I suspect that spacing between pans will not be sufficient for baking bread loaves if all ten sheet pans are used. Thanks for your help with this.