I believe that the very optimum way to run the cedar is to use a herringbone pattern made up of 4" lengths. And the cedar should be at least 2" thick.
At least that's what I've been told.
Seriously, I've seen chests posted here that have the cedar running both ways, one chest will be vertical and another will be horizontal. I think you can get prepackaged cedar closet lining kits that have the planks in 1/4" or 3/8" thicknesses(eseseses)
If you were to mill your own cedar I don't see why 1/4" material wouldn't work. You can pin it on with a 23ga pinner or you can glue it. That "no nails" glue that is advertised on TV would do the trick.
However, some of the "real" woodworkers here (as opposed to this hack) may have some different or better advice.
Can you post a pic of the chest that you intend to duplicate? I've got a bunch of material that is now dry and is itching to be made into something. I'd like to see your progress.
My diet is working good. I'm down to needing just one chair now.
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