Sampling is where a design becomes manufacturable. It is also where timelines slip, almost always for the same handful of reasons.
The stages
First pattern and proto sample
The patternmaker interprets your tech pack and produces a first pattern, then a proto sample, often in a substitute fabric. The purpose is to test construction and proportion, not to look finished.
Fit sample
Made in the correct fabric to the correct measurements. This is where fit is evaluated on a form or a fit model and comments are recorded.
Revisions
Most garments need at least one revision round. Complex garments need more. Each round costs time and money, which is why a precise tech pack pays for itself.
Pre production sample
The approved standard. Production is measured against this piece, so it should be signed off in writing.
Realistic timing
For a straightforward domestic knit style, expect roughly one to three weeks per sample round, with two rounds being common. Wovens and structured garments run longer. Add time for fabric to arrive, which is frequently the real bottleneck.
Where schedules actually slip
- Fabric ordered late, or a mill minimum that delays the whole run
- Vague fit comments that trigger a revision which does not fix the problem
- Approving a sample verbally and discovering the standard was ambiguous
- Changing the design after the pattern is graded
How to compress it
Give measurable fit comments. Order fabric early. Resist redesigning between rounds, because each change resets the evaluation.