Draping Period Costumes
6. Cut a piece of muslin as long as the manâ€™s shoulderto-knee measurement plus six inches and onequarter as wide as his chest measurement. Drape the CB neck to hem, neckline, extended shoulder seam, and down the armhole for a few inches. Stop at the point you want to begin the SB seam. Drape in the SB seam and cut off all but one inch of your seam allowances. The CB piece will be relatively narrow.
7. Cut a piece of muslin large enough to fill in the SB pattern plus seam allowance. Drape in the SB pattern.