Yes - and the full sett is not the distance between the two black lines shown in Hothir Ethelnor's post - it's *twice* the distance. To pleat this tartan, you have only a couple of options: 1) pleat to the sett and settle for a small number of really big pleats, 2) pleat to the sett and "cheat the pleats" (i.e., pick up elements of the sett every half sett or so, rather than every whole sett), which could be done with this tartan but might require a couple of double-deep pleats, or 3) pleat to the stripe and select a stripe that it repeated twice per sett.