To answer your original question, I have a 16" dark anodized perforated disk (not the hex disk) from PizzaTools (which is related to Lloyd Pans), and I have used it for pizzas smaller than 16". I have done the same with pizza screens. Both the screens and the disks we're engineered for conveyor ovens, not home ovens, although they will work reasonably well in home ovens. I also have a 14" dark anodized nonperforated cutter pan, also from PizzaTools. If you are not looking for a distinct rim, you should be able to use such a pan for a smaller size pizza although I haven't used mine for that purpose. Either way, the cutter pan is a good choice for cracker style pizzas. it's my favorite pan for that style of pizza.