# [Change length while keeping complete sections](https://threadcabin.com/explore/374/change-length-while-keeping-complete-sections)

> Add or remove complete repeats only in a section the construction allows to change.

- Canonical page: https://threadcabin.com/explore/374/change-length-while-keeping-complete-sections
- Language: en
- Published: 2026-09-25T17:26:35.2074426+00:00
- Updated: 2026-09-25T17:26:40.9920485+00:00
- Craft: Knitting
- Primary image: [Illustration: A sleeve with a tapered lower section and a straight body panel laid beside longer matching versions, with the extra length shown in muted teal.](https://threadcabin.com/images/explore/focused/length-changes.jpg)

Add or remove complete repeats only in a section the construction allows to change.

## Before you start

Gather the measurements, counts or timing sample needed below. Record their units and whether they describe a sample, the whole project or one purchased package. Use a finished sample when dimensions or material use depend on fabric structure.

## How to do it

1. **Calculate rows for a target length** — At 30 finished rows per 10 cm, 60 cm corresponds to 180 rows. Row gauge must be measured independently of stitch gauge.
2. **Adjust body or sleeve length** — Place added or removed length in a suitable straight section. Preserve shaping landmarks, paired pieces and the required final repeat rows.
3. **Plan a stripe sequence** — Specify stripe heights in rows or measured length and mark the full sequence repeat. Keep color joins and end placement in the plan.

## Try this example

At 30 rows per 10 cm, an 8-row repeat adds about 2.67 cm. Three extra repeats add 8 cm; check that the next shaping section begins on its required pattern row.

## Check your result

- Recheck the inputs against the actual sample or label, keep units consistent and round only the final count or purchase. Repeat a sample if a small measuring difference changes the decision.
- These arithmetic examples assume the measured structure stays comparable. Shaping, borders, dense textures and color changes require their own allowances or samples.

## Sources

- [www.purlsoho.com: all about gauge](https://www.purlsoho.com/create/all-about-gauge/)
- [www.craftyarncouncil.com: yarn weight system](https://www.craftyarncouncil.com/standards/yarn-weight-system)

[Browse editable craft templates](/crafts?craft=knitting)

[Report a correction](/corrections).

## Sources and provenance

- [Calculate rows for a target length](https://threadcabin.com/explore/70/calculate-rows-for-a-target-length)
- [Adjust body or sleeve length](https://threadcabin.com/explore/179/adjust-body-or-sleeve-length)
- [Plan a stripe sequence](https://threadcabin.com/explore/113/plan-a-stripe-sequence)
- [Gauge is a fabric measurement, not a needle promise](https://threadcabin.com/explore/2/gauge-is-a-fabric-measurement-not-a-needle-promise)