How you handle pleats at the hemline depends on whether the
pleat is folded or has a seam, or seams.
Folded pleats are constructed in the following manner:
Step 1: Fit the garment and establish the hemline.
Step 2: Remove the garment and mark the hemline, using
double tailor tacks for marking it across pleats. Trim the hem to
the desired depth.
Step 3: Remove the pleat tacking and open up the pleat, snipping
the tailor tacks between layers so that the hem tacking line can be seen on all the pleat folds.
Step 4: Turn up the hem, press, and finish.
Step 5: Fold the pleat into position. Work a cross-stitch tack on the right side. Press well.
Step 6: On the wrong side of the garment, edge stitch the pleat fold from hem upward to the full length of pleat. This helps to hold the pleat in position during wear.
Pleats with a seam are constructed in the following manner:
Steps 1 through 3. Follow the instructions for Steps 1 through 3
above.
Step 4: Mark the hem turning depth above the hemline on the pleat. Clip the seam allowances at this point.
Hem Turning Depth Marked and Seam Allowance Clipped
Step 5: Press the seam allowances open below the clip and trim to about 1/4 in.
Step 6: Follow the instructions for Step 5 (folded pleats).
Step 7: On the wrong side, edge stitch the pleat fold in the hem through all thicknesses.
Step 8: Finish the clips with a loop stitch. Completed pleat from the wrong side.