While I love making homemade pizza dough, I know that it takes time, and sometimes, you just don't want to do it or simply do not have time. In that case, you can absolutely use ready-made dough for the calzone. Sometimes the supermarket will have premade dough in the refrigerator section, near the premade salads or you can always find commercial pizza dough in tubes where you find the canned biscuit dough.