It is a good idea to tack the side hems along stitching line. This prevents them from slipping and hems always appear sharper. Using matching thread and working from the underside, insert needle through the seam down through to the right side, picking up a thread or two of the fabric. Then bring needle back up through the seam. Insert needle at the same point and direct needle along the seam between the hem a distance of 1″. Bring needle up through seam; then direct needle down through seam at same point, picking up two or three threads, and then up through seam again. Continue this tacking the length of the hem.
Drapery lined to top
There are times that draperies are lined to the top instead of using a hem, particularly when a valance or cornice board is used. To the length measurement, add 1½″ at the top for heading and seam. Cut lining in proportion. Stitch lining and drapery lengths together, bringing edges even at the top. Clip seam and press open. Cut stiffening the length of drapery width. Pin and stitch stiffening across the top, taking ½″ seam. Turn drapery right side out, enclosing heading. Press top and side hems. Finish hems at the bottom the same as for lined draperies.
Joining stiffening to lining and drapery at top.
Drapery turned to right side.
Interlined Draperies
Draperies are often interlined, particularly in very formal rooms, or when the character of the material is such that the extra weight is necessary for its protection. Interlining also adds to the draping quality and elegance of the fabric.
For an interlining fabric, use good quality cotton flannel. Cut interlining the exact measurements of draperies when finished; that is, if draperies have 1½″ hems on each side and 3″ hems, top and bottom, then cut interlining 3″ narrower and 6″ shorter than drapery fabric. Spread material right side down.