First measure the length of your quilt top three times. Use a tape measure to measure in the middle and along each side of the quilt.
When you measure along the sides, don’t place your tape measure at the edges of the quilt because the edges can be distorted. Measure a few inches in.
Fold the border strip in half to find the center and mark it with the pin. Fold the quilt top in half also and mark the center with a pin.
With the fabrics right sides together, pin the border to the quilt top in the center first (matching up the pins). Then pin ends of the border. Cut each distance in half and add a pin in the center until you have pins about every 6-8”.
Sew a side border to the quilt top with a 1/4” seam allowance and a medium stitch length. Open the border and press the seams flat. Then sew the remaining border strip to the opposite side.
Measure the width of the quilt 3 times to determine the length of the top and bottom borders.