There are restaurant grade commercial ranges and heavy-duty commercial ranges.
Restaurant Grade Commercial Range:
Also known as mid-size commercial ranges, restaurant ranges are best-suited for smaller restaurants. These restaurants would normally have less than 150 seats. Many times they can be found in church kitchens, shelter kitchens, schools, and mom and pop diners.
Heavy Duty Grade Commercial Range:
Heavy-duty commercial ranges can withstand more use, offer more heat power, and front gas manifolds that allow for batterying of equipment. It is recommended that they be purchased for restaurants that have more than 150 seats. These are more suitable for large facilities like correctional facilities, hospitals, cafeterias that are producing many meals in a day, and big restaurants.