Short answer - no. A foot-wide plank would be extremely unusual - especially after the early nineteenth century. Lumber that wide is scarce, especially in the kinds of wood used for deck and hull planking. A six-inch wide deck plank is believable; the more common width (especially in the twentieth century) would be more like four inches.
I haven't worked at all with the new pressure-sensitive wood deck sets. It's hard for me to believe that the planking seams on such parts in 1/700 scale are to scale. (The seams would be so small they'd be almost invisible.) On 1/350 I imagine making the seams to scale (or nearly so) might be feasible. It certainly could be done on 1/200.
When discussing subjects like this one quickly gets into the question of accuracy vs. impression. There's no way the raised or countersunk lines in a plastic kit can possibly represent wood planks to scale. (Trumpeter and Tamiya have come pretty close, though.) But many modelers, including me, think that an absolutely smooth deck doesn't look right. All sorts of things on a modern warship just can't practically be reproduced on such small scales. (Think how thick the plating on a gun tub ought to be in 1/700.)
My own opinion, for what little it's worth, is that impression matters. I'm pretty satisfied with the planking detail on the Tamiya 1/700 Missouri and the Trumpeter Queen Elizabeth. And I've seen pictures of some mighty impressive models with those pre-printed wood decks as well. Ya pays your money (quite a bit, these days) and ya takes your choice.
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