Pattern Index
The course

Chapter 10

The straight skirt

Every number below follows the size you pick.

The straight skirt is the simplest fitted block for the lower body: a back and a front, darts at the waist and a vent to walk in.

The frame is a quarter of the hip plus ease wide and as long as the skirt. The waist is smaller than the hip; part of the difference goes into the side seam curve, the rest into darts that end above the fullest part of the hip.

What you need

MeasurementWhere the tape goesSize 38
WaistRound the natural waist, where the body is narrowest, usually just above the navel.72.0 cm
HipRound the fullest part of the hips and seat, feet together.97.0 cm
Waist to hipDown the side of the body from the waist to the fullest part of the hip or seat.21.0 cm

Drafting, step by step

Each picture shows everything drawn so far; the new line of the step is in colour. The formulas show the names of the measurements first, then the numbers for size 38.

  1. 1

    Back

    Step 1

    Centre back line

    seam with the zip

    The skirt is drafted as a quarter: centre back on the left, side seam on the right. The back has a centre seam for the zip and the vent.

  2. 12

    Step 1–2

    Hip line

    Waist to hip − 1
    = 21.0 − 1 = 20.0 cm

    The hip line marks where the body is widest. Above it the skirt is shaped in to the waist, below it the skirt falls straight.

  3. 123

    Step 1–3

    Skirt length

    skirt length = 62.0

    Length is measured down the centre from the waist line.

  4. 1234

    Step 2–4

    Hip width

    (Hip + hip ease) ÷ 4
    = (97.0 + 4.0) ÷ 4 = 25.3 cm

    A quarter of the finished hip. The ease lets you sit and walk; a close straight skirt takes about 2 to 4 cm in all.

  5. 12345

    Step 1–5

    Waist width

    (Waist + waist ease) ÷ 4 + dart
    = (72.0 + 1.0) ÷ 4 + 3.0 = 21.3 cm

    A quarter of the finished waist plus the dart. The dart and the curve of the side seam take out the difference between the waist and the hip.

  6. 123456

    Step 6

    Centre waist lowered

    drop = 2.0

    The waistline dips at the centre back so that, worn, it follows the curve of the body and sits level all round. Without it the waist would ride up at the centre.

  7. 1234567

    Step 5–4–7

    Side seam

    curved to the hip, then 1.0 in at the hem: 62.6 cm

    The side seam curves out from the waist to follow the hip, then runs down to the hem. Taking the hem in narrows the skirt to a pencil line; keep enough width or a vent to walk.

  8. 12345678

    Step 8

    Waist dart

    width, length
    3.0, 12.0

    The dart is placed half of the way to the side and points to the fullest part of the seat. The back dart is longer and wider because the seat is rounder than the front.

  9. 123456789

    Step 9

    Vent

    15.0 up from the hem: 15.0 cm

    A vent at the centre back opens when you walk, so a narrow skirt does not restrict the stride.

  10. 123456789

    Step 10

    Outline of the back

    The sewing lines of the back. The waistband is a straight strip cut to the waist length plus the overlap.

  11. 1

    Front

    Step 1

    Centre front line

    cut on the fold

    The skirt is drafted as a quarter: centre front on the left, side seam on the right. The front is cut on the fold, so it comes out in one piece.

  12. 12

    Step 1–2

    Hip line

    Waist to hip − 1
    = 21.0 − 1 = 20.0 cm

    The hip line marks where the body is widest. Above it the skirt is shaped in to the waist, below it the skirt falls straight.

  13. 123

    Step 1–3

    Skirt length

    skirt length = 62.0

    Length is measured down the centre from the waist line.

  14. 1234

    Step 2–4

    Hip width

    (Hip + hip ease) ÷ 4
    = (97.0 + 4.0) ÷ 4 = 25.3 cm

    A quarter of the finished hip. The ease lets you sit and walk; a close straight skirt takes about 2 to 4 cm in all.

  15. 12345

    Step 1–5

    Waist width

    (Waist + waist ease) ÷ 4 + dart
    = (72.0 + 1.0) ÷ 4 + 2.0 = 20.3 cm

    A quarter of the finished waist plus the dart. The dart and the curve of the side seam take out the difference between the waist and the hip.

  16. 123456

    Step 6

    Centre waist lowered

    drop = 1.5

    The waistline dips at the centre front so that, worn, it follows the curve of the body and sits level all round. Without it the waist would ride up at the centre.

  17. 1234567

    Step 5–4–7

    Side seam

    curved to the hip, then 1.0 in at the hem: 62.9 cm

    The side seam curves out from the waist to follow the hip, then runs down to the hem. Taking the hem in narrows the skirt to a pencil line; keep enough width or a vent to walk.

  18. 12345678

    Step 8

    Waist dart

    width, length
    2.0, 10.0

    The dart is placed two thirds of the way to the side and points to the fullest part of the stomach. The back dart is longer and wider because the seat is rounder than the front.

  19. 12345678

    Step 19

    Outline of the front

    The sewing lines of the front. The waistband is a straight strip cut to the waist length plus the overlap.

The finished pieces

FRONTBACK
Straight skirt, size 38. Front (1× on fold), Back (2×), Waistband (1×). Seam allowance is added afterwards.

Sewing it

  1. Cut and mark. Cut every piece with the grain arrow parallel to the selvedge. Transfer the notches, the dart points and the marks with tailor's chalk or a short snip into the seam allowance.
  2. Interfacing. Fuse interfacing to the collar, stand, cuffs, waistband, facings and front edges before sewing anything.
  3. Darts. Sew each dart from the wide end to the point, the last stitches right on the fold. Tie the threads at the point, do not backstitch. Press waist darts towards the centre, bust darts downwards.
  4. Side seams. Sew the side seams, leaving the left side (or the centre back) open for the zip. Neaten and press open.
  5. Zip. Insert an invisible zip, the top stop just below the waistband seam.
  6. Waistband. Sew the waistband right side to right side to the waist, fold it over, press and stitch in the ditch from the outside. Add a hook and bar or a button.
  7. Vent. Finish the vent at the centre back: fold the extension, stitch across the top at an angle.
  8. Hem. Press up the hem allowance and catch it by hand or with a blind hem stitch.