If you like foundation paper piecing, you’ll love the Add a Quarter ruler from CM Designs, which we offer in two sizes. This 6″ long ruler is best for small intricate jobs. Take a look at the special cross-section in our photo – then how it works will be immediately apparent: after two pieces of fabric have been sewn together and the paper folded away, the seam allowance can be trimmed to exactly ¼” because the difference in height perfectly compensates for the folded paper!
Product video: youtube-thequiltershow-addaquarter
Size: 6×1″