Thanks for the information and replies. I had already located information on Zwilling, Williams Sonoma, Wüsthof, and others. Most say they take 10" knives. The design makes me think the critical distance is from handle to tip, at least for Wa handle. Obviously, that can be significantly longer than cutting edge length. I would be interested in any measurements from the handle-stop on the knife holder to the back end of the knife holder. I ask because I have a few 240 mm blades, which is not only close to whatever is meant by "10" knives" (plus variances based on knife maker and type).