Measure your waist and desired skirt length
Choose fabric and wash, dry, and press it
Calculate the amount of fabric needed
Cut the fabric to the skirt length plus seam allowance and hem allowance
Cut a waistband strip to fit your waist
Mark pleat placement lines on the fabric
Fold each pleat along the marked lines
Pin the pleats in place
Baste the pleats along the top edge
Sew the side seam or seams
Attach the waistband to the top edge
Insert a zipper or elastic if needed
Finish the waistband edges
Hem the bottom edge of the skirt
Press the pleats sharply
Remove basting stitches if desired
Check fit and make final adjustments