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Boy shorts

Short leg, side seams. 2 pieces, drawn here for size 40.

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On the bodyFront and back
Front
Back
Pattern piecesWith seam allowance
FRONTBACK
Pieces2
  • Front2×, 30 by 33 cm
  • Back2×, 34 by 38 cm
MeasurementsSize 40
  • Waist76.0 cm
  • Hip101.0 cm
  • Waist to hip21.0 cm
  • Crotch depth26.9 cm
Block settingscm
  • Fabric stretch taken off10.0
  • Waist ease5.0
  • Rise adjust0.0
  • Back fork drop3.0
  • Inside leg3.0
  • Leg taper at inseam1.2
  • Leg below crotch at side1.5
Fit checkscm
  • Finished waist73.7
  • Finished hip90.9
  • Crotch width14.5
  • Crotch seam total67.6
  • Side seam back − front0.0
  • Leg opening58.0
How to sew7 steps
  1. Cut and markCut every piece with the grain arrow parallel to the selvedge. Transfer the notches and the marks with tailor's chalk or a short snip into the seam allowance.
  2. Set up for stretchUse a ballpoint or stretch needle and a narrow zigzag or the stretch stitch, or an overlocker. Seams in knit must stretch with the fabric.
  3. Centre seamsSew the centre front seam and the centre back seam.
  4. Side seamsSew the side seams.
  5. Inside legSew the inside leg seam in one line from one leg through the crotch to the other.
  6. Leg openingsFinish the legs with lingerie elastic or a folded band, stretching it slightly.
  7. WaistJoin the waist elastic into a ring, sew it on in quarters, fold and topstitch.
Fabricsize 40
  • 110 cm wide0.9 m
  • 140 cm wide0.5 m
  • 150 cm wide0.5 m

Estimated from the pieces laid out with seam allowance, grain along the selvedge. Add more for matching checks or stripes. The editor shows the layout.