I have the Bostick & Sullivan frame for 11x14, and I use it for 8x10 and 11x14 paper. It is one of the best modern frames out there, far superior to the Photographers Formulary frames. I also have a handful of antique frames, which I use because I got them essentially for free, and in sizes that I can't afford modern ones for (12x20, 14x17). In any case, it's a terrific frame. Get it and you won't regret it, but as Vaughn said, go one size up from whatever you think will be your largest maximum print size. That way, when the addiction catches you and you get an even bigger camera, you can still print without buying another frame!