This is true Black Walnut, cut in Southern Wisconsin
Several pictures included to give you an idea of how the color ranges
Often times we run out of 10" wide walnut, and so we'll do an edge glueup of narrower boards, to get the 10" width. Most folks prefer that, since a glueup will stay flatter over time. But we certainly understand if your project requires a single 10" wide board. If that's the case, simply drop us a note telling us that glueups are not an option.