What is industrial patternmaking?

What you will learn

Understand what industrial patternmaking is, what stages make it up and how it differs from craft or hobby patternmaking.

Before you start

You don't need to know how to grade patterns or operate a CAD program yet: this lesson is conceptual, so you understand the whole process before getting into each stage in detail in the upcoming lessons.

Concept

Industrial patternmaking is the development of a clothing pattern designed to produce many identical garments, in a repeatable way. Drafting the base pattern is not enough: that pattern has to be graded to the whole size range, documented in a tech pack with measurements and materials, placed in a marker that makes good use of the fabric, and confirmed with a sewn sample before the cut of the full production run is authorized. It differs from craft or hobby patternmaking, which resolves a one-off pattern for one person or one specific garment: it doesn't need to grade sizes or think about fabric yield, because there a single unit is cut at a time.

Lesson content

Patternmaking or pattern drafting: the same craft, a different goal

In practice, patternmaking and pattern drafting are used as synonyms: it is the craft of turning a design into the flat pieces — front, back, sleeve, collar, cuff — that are later cut and sewn. The rules for building those pieces are the same whether you produce one unit or a thousand.

What changes between a craft development and an industrial one is not the base technique, but the goal of the pattern. A craft pattern resolves a single garment, for one body or one order. An industrial one has to resolve a repeatable production run of that same garment in hundreds or thousands of units, always identical to each other and across sizes.

The 5 stages of an industrial patternmaking development

Producing in series forces you to add stages that a hobby pattern doesn't need. A complete industrial development generally goes through these five:

Craft or hobby patternmaking: where it falls short for selling

Craft patternmaking solves the same basic problem — turning a design into pieces of fabric — but for a one-off case: a prom dress, a made-to-measure garment, a one-of-a-kind piece. It uses the same drafting rules as industrial patternmaking, because for a single garment there is no need to grade anything or think about the width of the fabric roll.

The problem appears when that pattern is used as-is to sell in series: it has no grading to other sizes, there is no tech pack to standardize sewing across operators, and fabric consumption is not controlled. These are problems you pay for dearly as soon as the run grows.

Factory roles and the software that goes with them

In a factory or a mid-sized workshop, industrial patternmaking is usually split among three roles (in small workshops, one person may cover all three):

These three roles work in a chain: an error in the base pattern carries over to the whole graded range and complicates the marker. Today a large part of this work is done with patternmaking CAD programs — Optitex, Audaces, Gerber and Lectra are the most used: the patternmaker drafts on screen, the grader loads the measurement chart and the program generates the complete range, and the marker maker builds the marker, calculating the fabric yield before a single meter is cut.

Practical example

A workshop that builds the pattern in Optitex can export it in DXF/AAMA — the universal standard — so that another factory working with Gerber or Lectra can open it without losing the grading or marker information.

Common mistakes

Confusing industrial patternmaking with finishing the drafting of the base pattern.: The base pattern is only the first of five stages: it still has to be graded to the whole size range, documented in a tech pack, the marker has to be optimized and the pattern approved with a sewn sample before cutting the series production.

Grading a pattern by enlarging the piece proportionally.: Grading is done with growth rules at each point of the piece, not by enlarging everything equally; that is why it is usually done by a grader, today largely with CAD software.

Using a craft pattern as-is to sell in series.: A craft pattern is not graded to other sizes, has no tech pack to standardize sewing across operators and doesn't control fabric consumption: those stages have to be added before producing in quantity.

Modeltex tip

Setting up an in-house patternmaker, grader, marker maker and CAD software takes weeks for each new style when you are just starting to produce in series. Starting from patterns already graded to the complete size range and approved with a sewn sample saves you that development for a style that already exists, solved.

Exercise

Pick a garment you already produce or want to produce in series and review the five stages of this lesson: Do you have the base pattern drafted? Is it graded to your whole size range? Is there a tech pack with measurements and materials? Is the marker designed to use less fabric? Did you sew a sample in the final fabric before cutting the full run? Write down which stage you are at and which one you still need to close.

Frequently asked questions

What is industrial patternmaking?

It is the development of a clothing pattern designed to produce many identical garments in a repeatable way: it includes grading the base pattern to the whole size range, building the tech pack with the measurements and materials, optimizing the marker, and approving the style with a sewn sample before series production.

What is the difference between patternmaking and pattern drafting?

In practice, none: they are used as synonyms for the craft of turning a clothing design into the flat pieces that are cut and sewn. What changes is the adjective that gets added: industrial points to series production with a size range and a marker, craft or hobby points to a one-off garment.

What is the difference between a craft pattern and an industrial one?

A craft pattern resolves a garment for one specific person, without grading to other sizes or thinking about fabric yield, because one unit is cut at a time. An industrial one adds grading to the whole size range, a tech pack, a marker designed to minimize waste, and approval with a sample before series production.

What does a pattern grader do?

It grades the base pattern to the other sizes of the range, for example from XS to 4XL, applying growth rules at each point of the piece according to a measurement chart; it doesn't enlarge the pattern proportionally. Today this work is largely done with CAD software, which generates the complete range from the loaded measurement chart.

What software is used for industrial patternmaking?

The most used in factories and mid-sized workshops are Optitex, Audaces, Gerber and Lectra, each with its own formats (PDS in Optitex, ADS in Audaces) in addition to the universal DXF/AAMA standard. They cover base pattern drafting, automatic grading to the size range and the marker, calculating the fabric yield before cutting.

Summary

Industrial patternmaking is the development of a pattern designed to produce many identical garments: base pattern drafting, grading to the whole size range, tech pack, optimized marker and approval with a sewn sample. It differs from craft patternmaking, which resolves a single garment without needing to grade sizes or control fabric yield. In a factory, that work is split among a patternmaker, a grader and a marker maker, today largely supported by CAD software.

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