UPMSP Intermediate Sewing study materials
UPMSP Intermediate Sewing study resources

One Chance to Cut: Individual Measurements and an Uneven Shoulder

UPMSP Intermediate Sewing · Put your knowledge to work in context.

All case studies

One Chance to Cut: Individual Measurements and an Uneven Shoulder

A 34-year-old client, 158 cm tall, wants a fitted lined cotton blouse for a lehenga. Her measurements are: bust 94 cm, underbust 84 cm, waist 82 cm, hip 100 cm, shoulder width 38 cm, back neck-to-waist 39 cm, front neck-to-waist 45 cm, armscye 40 cm. The centre's readymade size chart gives bust 94 cm as size 'M' with waist 76 cm and front length 42 cm. Her right shoulder drops 1.5 cm lower than her left, and her bust apex sits about 2 cm lower than the chart's standard position. The blouse is to be cut from 1.5 m of 112 cm dyed-to-match fabric with a matching cotton lining; there is no more of the dye lot, and the blouse must be delivered in three days.

1. Which measurements must be taken from the client, and where may the size chart be used? Explain what goes wrong if the chart's waist and front length are used.

Read the worked answer

Use the client's own body measurements for every girth and length that carries fit: bust 94, underbust 84, waist 82, hip 100, shoulder width 38, back neck-to-waist 39, front neck-to-waist 45, armscye 40. The size chart is a starting point only - it may supply construction conveniences such as standard ease, the shape of the armscye curve or dart placements that are then adjusted to the measurements.

What the chart would do wrong:

  • Waist 76 vs 82. The chart assumes 6 cm more waist suppression than the client has. Drafted as size M, the blouse would be tight at the waist, the darts would pull open, and horizontal strain lines would appear above the waist. The 6 cm must be distributed between the side seams and darts according to the front/back difference, not dumped in one seam.
  • Front length 42 vs 45. The chart front is 3 cm too short. The bust dart would sit high, the front would ride up, and the waistline would climb above the lehenga's waistband.
  • Front–back difference. Her front (45) exceeds her back (39) by 6 cm, which signals a full bust; that difference must be built into the front draft as dart intake and length.

Blending sizes (bust M, waist L) is normal practice; using the chart wholesale is not.

2. How do you put the 1.5 cm shoulder drop and the low bust apex into the paper pattern before cutting?

Read the worked answer

Shoulder drop (right side only). Hold the neck point where it is and lower the right shoulder point by 1.5 cm, then redraw the shoulder line to the new point and re-shape the top of the armhole. Do not mirror the change onto the left piece - the two fronts are drafted as mirror images but corrected differently. Keep the armscye depth unchanged so the sleeve cap still fits; if the armhole circumference changes by more than about 0.5 cm, true the sleeve cap to match. Mark 'RIGHT' on the piece in chalk so the cutter cannot swap sides; the lining must carry the same correction.

Low apex. Move the bust point down 2 cm on the front draft, then pivot the existing dart legs around the new apex so the dart keeps its intake but points 2 cm below the apex, not at it. Record the new apex height on the pattern for future orders, and check that the front length (45 cm) still lands on the waistline once the dart is folded.

Then walk the seams: front and back shoulder must be equal in length, side seams equal, and the dart positions must be marked on the lining as well as the shell.

3. Given one dye lot and three days, what checks would you complete before the shears touch the fabric?

Read the worked answer

Treat the paper pattern as the real garment and test it twice - once flat, once on the body.

  1. Measure the pattern, not the body. Add the seam allowances and compare the finished pattern circumferences with bust 94, waist 82, hip 100 plus the intended ease (roughly 6–8 cm at the bust for a fitted blouse). If the pattern's bust is under 100 cm, the blouse will not close.
  2. Walk the seams: shoulder front vs back, side seam front vs back, armhole circumference vs sleeve cap (cap should be about 2–3 cm larger for easing), neckline front vs back collar/facing.
  3. Check the corrections are where they belong: the 1.5 cm drop only on the right front and right back, the new apex marked, grain lines drawn on every piece and parallel to the selvedge.
  4. Plan the layout on paper first. With 1.5 m × 112 cm for shell and lining, front, back, sleeves, facings and lining pieces must all fit; if not, the design must change (shorter sleeve, faced neckline) before cutting.
  5. Sew a muslin in cheap cotton if any time exists, or pin-fit the paper/ tacked shell on the client over the correct bra, mark changes on the paper pattern, and only then cut the dyed fabric. Get the client's approval on the muslin in writing.