Plaids, stripes, and prints are strong visual patterns, so it is important to match them at prominent seams. If you are careful laying and cutting out the pattern, the seams will be almost invisible. You need to buy extra fabric, 1/4" to 1/2 yard (0.25 to 0.5cm), depending on the size of the pattern repeat (the distance from one bar of the plaid or stripe to the next identical bar or from one large motif to another).
15th Dec 2017