How To Make Bed Skirt From Flat Sheet. To make a bed skirt, start by measuring the width and depth of your bed, as well the height from the floor to the top of your box spring. Put your hands under the bottom two corners and lift the corners upwards.
Attach the bed skirt to the sheet by stitching on the gathering line, 1 inch from the bed skirt’s raw edges. If your bottom sheet is fitted, simply slip the corner pockets onto the ends of the bed and adjust the fitted sheet around the perimeter of the mattress, atop the mattress pad. To make the ruffle you will simply pinch about an inch of fabric up.