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Question: what is the actual cooking surface potential of this skillet.   Is it 9 or 10-inches ?
Document: I have two 10" All-Clad pans that are fine, but sometimes I wished I had a slightly larger one. A 12" one is too wide for my small stove. One wouldn't think an inch difference in diameter would mean much, but the 11" French skillet  cooking/heating surface is 2" wider than the 10" fry pans. Not much heavier and does the job. Highly recommend.
I bought this skillet because it was $20 cheaper than the 10" All-Clad Stainless Fry Pan and only a little bit smaller. I am so glad I bought this. It's the perfect size for wilting spinach for my morning omelette, or for cooking/baking stuffed chicken breasts. (Like all the rest of the All-Clad cookware, it goes from stovetop to oven and back again. )I use it about four times a week and I've had it for a couple of months now. The only time I don't use it is when I need a non-stick pan.
From my use, the bottom of the pan has discolored somewhat. I've read that Barkeeper's Friend can get it back to looking like brand new, but who really cares? It cooks like a dream.Between the 10" stainless fry pan and this pan, I would recommend this pan. I don't see much difference in cooking ability and it's cheaper. Plus, if you are going to get a 10" fry pan, you might as well get the one with the non-stick coating.
I had to alter my cooking procedures slightly from what I did with my old non-stick surface. Using spray olive oil and heating the pan slowly before adding food but once you figure it out the pans work great and omelets and eggs come out perfect with virtually no clean-up. The pans heat evenly and look great on the rack.
I was excited to find such a good deal on an All-Clad skillet. I am looking for a stainless steel one to replace the large, deep non-stick skillet that I've had for the past 10 years. The pan arrived yesterday and upon opening it I was deeply unsatisfied. First, the pan is made of a very light gauge steel. It is much lighter than that used in the kitchen-aid set I'd received earlier in the week. Secondly, the handle is very uncomfortable. It is a concave handle, but he edges press into my hand and make handling the pan uncomfortable.
Some other reviews have stated a dissatisfaction with this skillet due to it's "convex" bottom. Actually all of the All Clad pans have a Concave bottom. They are determined concave by looking at the pans upside down. The reason for the uneven surface is that when the aluminum core heats up to a certain level it actually warps straight. If the allowance of this concave was not there, the pan would wobble around on your stovetop as then it would be truly convex. Most high quality pans have this feature, and it is built in by design.
I've been absolutely thrilled with the french skillet since it came in a couple weeks ago. I love to cook, but I'm limited on both space in my small apartment with even smaller kitchen, and limited budget. This pan serves double duty for a skillet (aka fry pan), which is designed with very low sides to allow easy access and a wide surface area, and a saute pan which alternatively has vertical sides to hold liquid inside. The french skillet sides are half-way between -- tall, but with a bit of flare to allow access -- and I now use it regularly for both purposes.
I ordered both a 9 and 11 inch nonstick skillet. They both suffered uneven bottoms. Middle was 1/8 inch higher than bottom edges. I did not even use the pans. None of my older all clad pans had any such problems. I called all clad and they would accept them back, but I would have to pay shipping. So, I returned both of them to Amazon as defective. I hope you do not get either of my returns!
I love all-clad. Beautiful, functional, reliable. This skillet is a good &#34;meal for one&#34;  or food prep size. If you're cooking for more, you'll want something bigger. Arrived quickly and nicely protected.
And the 13" French skillet feels lighter than the 14" fry pan (LTD or stainless). If All Clad made the French skillet in Copper Core, I may get it depending on the weight. Copper is heavy.PROS:Weights less than the All Clad 14" stainless or LTD fry pan but with the same bottom cooking area.Can be covered if you have the lid for the stainless or LTD 6 quart saut&eacute; pansCONS:  Does not heat evenly when used on an electric (coil) range.One last note.
Answer: Hi Teresa:I just measured my 13" pan.  The bottom is 11" in diameter.Hope this helps.