It seems that there are three sorts of things which might all (properly) be called a griddle. One is a big old cast iron or steel thing that fits over several burners on the stove/range and is used to cook things like pancakes. Another is a stand-alone electrical device which is used for the same purpose and is usually called an electric grill (rather than griddle) 'tho I think of grills as mostly being grated. The third is the huge metal fry-top on a commercial stove on which burgers, hash browns and pancakes are all cooked in restaurants, to which some people refer as a griddle, 'tho I tend to call it a grill, even 'tho it doesn't have grates. Confusing, eh?