Yuummyy! Look at the size of the actual main cooking grate. The formula for calculating is width of the cooking surface by depth. That will give you the total square inches of actual cooking area here. You do not want a crowded grill when cooking. The ideal is about 1/2-inch between foods being cooked and about 72 square inches per person to feed. So if you know you’ll always need to feed 4 people, look for a grill that has a minimum of 288 square inches of cooking area.