This one is 12", it will handle 4 grill cheese I bet. Works great for pancakes so far also. We don't cook grill cheese a whole lot for some reason and when we do the little round cast iron in the back stays on the stove. Use it almost daily.
I have a large round cast iron skillet - 12" also I'm guessing - at work that I use for cornbread, handles a double recipe no problem. I cut cornbread into squares, whats funny is square cornbread in a round pan doesn't bother me one bit.
Concho "I know enough to post here in redneck pot smoking bunker......that's for sure."