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What Are Pattern, CAD & Grading in Garment Production?

How one approved pattern becomes a full, correctly-fitting size range.

A garment pattern being graded across sizes on CAD software

Reference illustration — will be replaced with a real photo.

The Pattern Is the Bridge Between Design and Production

A pattern is the template — one piece per garment component — that fabric gets cut around. Nothing about a design becomes an actual, repeatable garment until it exists as a pattern. Most factories work from a base pattern (sometimes called a sloper or block): a basic, well-fitted shape used as the starting point for every new style.

From One Pattern to a Full Size Range

CAD (Computer-Aided Design)

Software (like Gerber AccuMark or Optitex) is now the standard way patterns are drafted, edited, graded, and arranged into markers — far faster and more precise than fully manual methods.

Pattern Grading

The base pattern is scaled up and down to produce every size in the range, following a grading chart that specifies exactly how much each measurement point changes between sizes.

Size Development

Graded patterns are checked for fit consistency across the whole range, so proportions stay correct at both the smallest and largest sizes, not just the sample size.

Where Marker Making Fits In

Once every size is graded, the pattern pieces for the full cutting plan are arranged onto a marker — a layout showing exactly how the pieces fit onto the fabric width. Marker efficiency (how little fabric is wasted as scrap) directly affects the fabric cost of the entire order, which is why experienced marker planners are valued: even a small efficiency gain adds up fast across thousands of units.

Good Pattern & Grading Practice vs. Problem Practice

Signs of Good Practice

  • Graded patterns checked and approved across the full size range, not just the sample size
  • Pattern updated and re-approved whenever the tech pack changes, before cutting continues
  • Markers reviewed for efficiency before large-scale cutting begins

Signs of Problem Practice

  • Grading rules applied inconsistently, causing proportions to look off at extreme sizes
  • Cutting continuing on an outdated pattern after a spec change
  • A rushed, inefficient marker that wastes noticeably more fabric than necessary