Flared, rippled, borders - borders that do not lie flat - are the most common piecing problem that we see.
Borders that are cut straight of grain, rather than cross grain, are more stable and less likely to flare.
Many piecers find the following method of applying borders helpful.
TO MAKE A BORDER WITH STRAIGHT-CUT CORNERS:
Determine the length of the quilt border by averaging the distance of two or three center measurements (see fig. 1.) Cut two borders that length and pin them to opposite sides of the quilt matching ends and centers and easing in the fullness. Sew and press
Determine the width of the quilt border by averaging the distance of two or three center measurements (see fig. 2. ). Cut these borders that length and pin - easing in the fullness. Sew and press.
To make mitered corners, consult a quilting book that contains instructions for finishing a quilt.