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Size grading and size charts

Size grading and size charts, measured, not guessed.

Already have flats or a sample? We grade your points of measure across every size with a tolerance on each line, and turn them into a size chart your customers can read. Grading and size charts only, no redraw of your pack.

Get a quote for grading Try the free size chart generator

Free quote · Reply within 24h · cm or inches · Yours outright

Grading price$89 per style Graded spec and size chart. Size chart only: $49 per style. Scope confirmed by email before any work starts.
Hands guiding cream twill under a multi-needle sewing machine with contrast topstitching
Topstitching a twill waistband

Grade rules · cmStyle: crewneck tee

Graded points of measure for a crewneck tee, XS to XL, base size M. Example values in centimeters
POMXSSMLXLGrade
A48.050.553.055.558.0+2.5
B68.070.072.074.076.0+2.0
C19.020.021.022.023.0+1.0
D17.017.518.018.519.0+0.5

Example valuesBase size M

How grading is done

Measured, graded, checked twice.

Every point of measure is set with a tolerance and graded across your sizes, then a second person checks the numbers before delivery.

  • Measuring the sleeve of a black jacket with a tape measure
    SleeveMeasuring the sleeve
  • Hands holding a tape measure at the shoulder seam of a brown knit top
    ShoulderChecking the shoulder seam
  • Overhead view of a team measuring and adjusting a garment on a cutting table
    On the tableMeasuring on the table
  • Brown paper patterns hanging on hooks with a pattern ruler
    PatternsPaper patterns

Grading, shown

One base size in, every size out.

Pick a size range and a unit to see how the same base measurements grade. Your file comes with the grade rule on every line, so a factory can check each size against it.

Size range
Unit
Graded points of measure for a crewneck tee, base size M. Example values
POMDescriptionXSSMLXLGradeTol ±
A1/2 chest, 2.5 cm below armhole48.050.553.055.558.0+2.51.0
BBody length from HPS68.070.072.074.076.0+2.01.0
CSleeve length from shoulder point19.020.021.022.023.0+1.00.5
DNeck width, seam to seam17.017.518.018.519.0+0.50.5

Example values: crewneck tee, base size MCentimeters

Break points, not one rule for every size

Bodies do not grow in equal steps. Pick XXS–3XL and watch chest and length change pace after XL: that is a break point, and your grade rules should say where it sits. Inches are converted from centimeters and rounded to 1/8 in; on your file we grade in the unit your factory works in.

We grade the spec, not the pattern

We grade the measurement spec and write the grade rules. Your factory or pattern maker grades the paper or digital pattern from it. Want a quick size chart first? Try the free size chart generator.

What you get

Four files, one size system.

Everything a factory needs to cut every size, and everything your customer needs to pick one. Delivered as a PDF; any other file formats are confirmed in your quote.

  • POMSML±
    A50.553.055.51.0
    B70.072.074.01.0
    C20.021.022.00.5

    File 01Example values

    Graded spec sheet

    Every point of measure with how it is taken, graded across your sizes, with a tolerance on each line.

  • POMStepAfter XL
    A+2.5+3.0
    B+2.0+1.0
    C+1.0+0.5

    File 02Example values

    Grade rules

    The step between sizes for every point, including the break points where the step changes.

  • SizeChestWaist
    S86–9171–76
    M91–9776–81
    L97–10281–86

    File 03Example values

    Customer size chart

    Body measurements, not garment measurements, in cm and inches, ready for your product page.

  • ABC

    File 04Example values

    How-to-measure guide

    A drawn flat with each point marked, so your team measures samples the way the factory does.

The team behind every pack

Real people draw every tech pack.

Our studio team in the USA drafts every flat, measurement and note, and answers your revision rounds by email. No template generator, no guesswork.

  1. Team at a table reviewing printed sportswear flats and color swatches, with the designs on a screen behind Reading a brief with flats and swatches
    01

    We read your brief

    Sketch, reference photo or sample: someone on our team reads it and replies within 24 hours with the tier, the price and the timeline.

  2. Tech pack page with front, side and back technical flats of a raglan active t-shirt Example page
    02

    We draw the flats

    A technical designer draws every view to proportion, with numbered callouts for each seam, stitch and trim.

  3. Vest tech pack page with front and back flats, a graded measurement table and a bill of materials Example page
    03

    We grade and spec

    Measurements graded across your sizes with a tolerance on every line, plus the bill of materials and construction notes.

  4. Technical designer kneeling to measure the inseam of a fit model with a tape measure Measuring the inseam on a fit model
    04

    A second person checks every measurement

    Before delivery, someone who did not draw the pack checks every point of measure against the flats. Then 2–3 revision rounds by email.

Get a quote for your tech pack How we work

Example pages are shown with the brand removed. Photos show the kind of studio work behind each step.

What to send

Send the base size. We grade the range.

Grading works from a garment that already fits. If you do not have flats or a base sample yet, the full tech pack is the better start.

Send us

  • Flats or a sampleYour flats, or clear photos of the approved base sample laid flat.
  • Base size measurementsMeasured on the base sample. No numbers yet? We send a how-to-measure sheet.
  • Size range and marketThe sizes you sell and where (US, UK, EU sizing differs).
  • Fit notesWhat you changed on the base sample, and anything a size should not do.

Right service?

  • Yes, if you have flats or a fitted sample and need every size specced.
  • Yes, if your size chart and your factory’s measurements disagree.
  • No, if nothing is drawn yet: the full tech pack includes grading.
  • No, if you need the pattern itself graded: that is your pattern maker, working from our graded spec.

What it costs

$89 per style

Graded spec, grade rules, size chart and how-to-measure. Size chart only: $49 per style. Scope and timeline confirmed by email before any work starts.

Get a quote for grading

Inside the studio

Where the work actually happens.

Pattern tables, dress forms, sample rails and swatches: the places your file will be read. Our studio team in the USA writes every note for them.

  • Paper pattern pieces hanging along a studio wall above a long cutting table
    Patterns above the cutting table
  • Pattern studio with a dress form, pattern pieces on the wall and a cutting table
    Pattern corner
  • Sewing machine on a table with paper patterns pinned to the wall above it
    Patterns and machine
  • Bright studio with a long work table and rails of clothing along the walls
    Sample rails and work table
  • Three designers at a table covered with fabric samples and laptops
    Fabric review
Get a quote for your tech pack

Free quote · Reply within 24 hours · Flat fee per style · Studio team in the USA

Before you send it

Straight answers on grading.

What grading covers, what you send, and what we do not do.

Not on the list?

Ask us with your brief.

We reply within 24 hours. Or email garmentspec@gmail.com.

Get a quote

Size grading turns one base size into a full size range by adding or subtracting a set amount, the grade rule, at each point of measure. We grade the measurement spec your factory works from and write the rule on every line.

No. We grade the measurement spec and write the grade rules. Your factory or pattern maker grades the paper or digital pattern from that spec.

Your flats or photos of the approved base sample, its measurements, the size range you sell and your market. No measurements yet? We send a how-to-measure sheet first.

Yes. You measure the base sample with our how-to-measure points and send the numbers and photos. If a number looks off against the photos, we ask before grading.

The graded spec lists garment measurements for the factory, with tolerances. The size chart lists body measurements for your customer, so they can choose a size. We make both from the same numbers so they agree.

$89 per style for the graded spec and size chart, or $49 per style for a size chart only. We confirm the scope and timeline by email before any work starts.

Your size range

Send your base size. We grade the rest.

Tell us the style, the sizes and the market. Grading is $89 per style; we reply within 24 hours and confirm the scope by email before any work starts.

  • Flats or sample photosThe drawings, or the base sample laid flat.
  • Base measurementsMeasured on the base sample, cm or inches.
  • Size range and marketThe sizes you sell, and where.
  • Fit notes If anyWhat changed on the base sample.
Get a quote for grading Free size chart generator

Free quote · Reply within 24h · Price confirmed by email before any work starts · garmentspec@gmail.com

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