A fitted bedspread is just like sewing a part of a box with an open end; it is not hard to sew, as long as you take accurate measurements and keep your seams to 1/2 inch. You can sew a fabric-covered welting cord to the very top seams of the bed to protect it from wear and also add a neat finish. This touch also provides the bedspread a finished, tailored look.
Assess the width across the top of the bed from edge to edge, and also write down the measurement. Repeat this step for the amount of the bed, edge to edge. Have a measurement from the top edge down the side of the bed to where you want the bedspread to hang. Insert 1/2 inch to every sewed edge. On the very top, add a total of 1 inch to your bed span, and also add a 1/2 inch for the bottom seam allowance. On the two sides and one base panel, add 1/2 inch to every top edge for your seam allowance, 1/2 inch to each side seam, and 1 inch to the base of each panel for your hem. Gauge the top seam down one side, across the bottom, and up the other side when you’re planning to sandwich upholstery cord between the top seams.
Cut the cord to the dimension, adding an additional 1 inch to every end. Cut a strip of fabric on the bias — diagonally — broad enough to cover the cord and leave 1/2-inch seam allowance. Set the cord inside the fabric folded in half, right-sides out. Sew along the edge of the cord to enclose the cord in fabric.
Cut the fabric to the measured dimensions for the bed to a flat surface. Put the most significant piece on the top of the bed, right-side facing the bed. Pin the side panels to the upper piece sandwiching the cord between the seams — wrong-side out — using the covered cord side facing the bed, allowing a 1/2-inch seam allowance. Pin the side seams together.
Remove the trapped bedspread from the bed and take it to the sewing machine. Starting at the very top on one side, sew the seams together over the top, removing the pins as you work, verifying a 1/2-inch seam allowance by following the markings on the sewing machine plate. Sew the side panels second. Finish the bedspread by bend the hem below 1/2 inch two times for a clean edge, and sew the hem flat.
Turn the bedspread right-side out and then insert it to the bed. After ensuring a fantastic fit, trim the inner seam edges. To keep the fabric from unraveling, you can complete the edge of the seams using a zigzag stitch. Iron the seams flat, and stand back to admire your work after placing the bedspread on the bed.