I have made them in all widths. The important thing to remember is this: cut all your strips on the lenght of grain, so that there is less stretch. If you only have strips that are cut on the width of the grain, then you should use a foundation to eliminate stretch (I use dryer sheeet). After you finish the borders, strarch them and press them. measure the middle of your quilt, lenghtwise and widthwise, and that is the measurement that you should cut the borders at and your quilt will be square and not lopsided.