Choose a square size that can be divided evenly by the cut of your binding. Multiply the number of divisions by the square length. This will tell you how many inches of binding that square yields. Always make more binding than you need to allow for unusable sections.
For example, using a 20? square of fabric and binding cut 2 ½? wide:
2 ½? divided into a 20? square = 8
8 x 20 = 160? of binding
- On wrong side of the fabric, mark the top and bottom of the square. Cut in half on the diagonal.
- Sew the two triangles together with a 14? seam along the marked edges. This is not the bias edge. Offset the ends so you have a little ‘v’ at each end. See figure 2.
- On the wrong side, mark the lines for the desired cut width. Cut off any extra fabric.
- With right sides together, match the bias edges.
- Offset the marked lines by one width, matching lines at the seam (not at the edge), and sew into a tube using 1/4? seam.
- Press seam open and cut along lines for a continuous bias strip.
SQUARES FOR BIAS BINDING (In Inches)