Boys school trousers - sewing tutorial

Before sewing

For trousers, we recommend using light to medium-weight suiting fabrics, such as suiting wool, suiting cotton, etc.

For pocket fabric, you can use pocket lining fabric.

Supplies

  • Main fabric;
  • Lining fabric for pocket pieces;
  • Interfacing;
  • Elastic into the waistband.

Fabric consumption (cm / in)
(Witha fabric width of 150 cm / 59.1 in)

Size 8 years
128
9 years
134
10 years
140
11 years
146
12 years
152
Main fabric 0.89
33.5"
0.90
35.4"
0.95
37.4"
1
39.4"
1.05
41.3"
Lining fabric 0.25
9.8"
0.25
8.9"
0.25
9.8"
0.30
11.8"
0.30
11.8"
Interfacting 0.20
7.9"
0.20
7.9"
0.20
7.9"
0.20
7.9"
0.20
7.9"

When buying fabric, keep in mind that the material can shrink, so take with a margin of 5 – 10%.

Specification

Main fabric

Patterns Number of
patterns
Number of
pieces
1 Back pant leg 1 2
2 Front pant leg 1 2
3 Outer pocket facing 1 2
4 Inner pocket facing 1 2
5 Waistband 1 1

Lining fabric

Pattern Number of
patterns
Number of
pieces
6 Pocket piece 1 2

Support pattern

Pattern Number of
patterns
Number of
pieces
7 Fly line 1 -
8 Elastic into the waistband 1 -

Layout of parts on fabric

For size 8 years (height 128 cm)

Main fabric

Layout width – 1.5 m (59.1″);

Lining fabric

Layout width – 1.5 m (59.1″);

For size 12 years (height 152 cm)

Attention! All our patterns already contain 1 cm / 0.39 in seam allowances.

Description of tailoring

  1. Pin the front parts of the thousers with the right sides together and stitch. Serge the allowances. Press.

2. Mark the fly front line with chalk. Fold the fly part to the left front panel and pin it. Top stitch along the chalk line (mark the fly), then topstitch down to the crotch line. Sew the bartacks on the fly front. Press it.

3. Iron the interfacing to the pocket facing.

4. Serge the raw edge of the outer (side) pocket facing and press it. Pin the outer pocket facing with the wrong side over the front side of the pocket piece.

Stitch along the serger stitching line.

Press it.

5. Pin the inner pocket facing with the right side to the pocket piece.

Sew in place.

Press the allowances to the pocket piece and topstitch the pocket piece.

6. Pin the inner pocket facing to the front trousers panel with the right sides together.

Sew in place.

7. Trim the allowances to 0.3 сm (0,12″). Bend the pocket to the wrong side and press it.

8. Topstitch the front trousers panel to secure the allowances. Press it.

9. Pin the pocket pieces together with the right sides.

Stitch it.

Serge the raw edges.

Hide the ends of the threads in the seam. Press it.

10. Serge the side raw edges of the front and back trousers panels (inseam and outseam).

11. Serge the crotch line on the back trousers panels.

12. Press all the serged parts.

13. Pin the back panels of the pants with the right sides and stitch along the crotch line on the sewing machine.

14. Then pull one allowance to the side of the back trousers panels and stitch it 0.1 cm (0,04″) from the seam, this way we avoid a gap between the seams and reinforce the crotch.

15. Pin the front and back of the trousers with the right sides along the outseam and stitch it.

Press allowances open.

16. Pin the trousers with the right sides along the inseam and stitch it.

Press allowances to the back.

17. Pin the waistband to the upper hem of the trousers with the right sides and stitch it.

18. Press the raw edge of the waistband to 1 cm (0,39″). Fold the waistband in half and baste it, then stitch it exactly into the stitching line. Leave a hole for inserting the elastic.

19. Fold the bottom hem of the trousers twice, pin and sew in place.

20. Perform a final wet heat treatment.

School trousers are ready!

Thanks so much for sewing with me!
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