There are many options for binding the edges of a quilt. Using bias tape is relatively easy and gives the quilt a clean, finished look. Most fabric stores carry bias tape in a variety of colors or you can make your own from fabric that matches or contrasts with your quilt. Binding the edges of the quilt should be the last step in making the quilt, after you've finished quilting by machine or by hand.
Lay the quilt out flat with the back facing up. Use a ruler and rotary cutter or scissors to trim the edges so that all three layers are even all the way around the quilt.
Join the pieces of bias tape so that you have one continuous piece a few inches longer than the perimeter of the quilt. Two join two pieces of bias tape, cut each end at a 45 degree angle. Sew the two pieces together with a 1/4-inch seam and press the seam open to reduce bulk.
Unfold the bias tape. Align one edge of the bias tape with the edge of the quilt and pin all the way around the quilt.
Sew along the first fold in the bias tape all the way around the quilt. Fold the bias tape neatly at the corners. When you reach the starting point again, fold over the end of the bias tape approximately 1/2 inch and finish the seam so that it overlaps the starting point by approximately 1 inch.
Flip the quilt so that the top is facing up. Wrap the bias tape over the edge of the quilt to the front side and press with an iron. Pin the front of the bias tape in place all the way around the quilt.
Use a needle and thread to hand sew the front of the bias tape in place. Use short stitches through just the fold to make the seam almost invisible.
For a seamless look to your binding, piece the binding only at the mitered corners.