# [Change body length without moving shaping](https://threadcabin.com/explore/386/change-body-length-without-moving-shaping)

> Identify a permitted straight section and preserve armhole, waist and hem relationships.

- Canonical page: https://threadcabin.com/explore/386/change-body-length-without-moving-shaping
- Language: en
- Published: 2026-09-25T17:26:35.2970190+00:00
- Updated: 2026-09-25T17:26:41.0675259+00:00
- Craft: Knitting
- Primary image: [Change body length without moving shaping — example diagram](https://threadcabin.com/images/learning/n23-plan.png)

Identify a permitted straight section and preserve armhole, waist and hem relationships.

## 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. **Read a garment schematic** — Identify whether each dimension describes the body, a flat panel or a full circumference. Locate shoulder, underarm and finished edges before comparing sizes.
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. **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.
4. **Estimate a rectangular project from a weighed sample** — A finished 10 × 10 cm sample weighing 5 g scales to 150 g for a 50 × 60 cm rectangle. With 10% reserve, plan 165 g before rounding packages.

## Try this example

Adding 5 cm at 28 rows per 10 cm gives fourteen rows. Place them only in the reviewed straight section, then check motif alignment and recalculate its extra yarn from the body sample.

## 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

- [Read a garment schematic](https://threadcabin.com/explore/175/read-a-garment-schematic)
- [Adjust body or sleeve length](https://threadcabin.com/explore/179/adjust-body-or-sleeve-length)
- [Calculate rows for a target length](https://threadcabin.com/explore/70/calculate-rows-for-a-target-length)
- [Estimate a rectangular project from a weighed sample](https://threadcabin.com/explore/63/estimate-a-rectangular-project-from-a-weighed-sample)
- [Gauge & size planner](https://threadcabin.com/tools/gauge-size-planner)

## [Gauge & size planner](https://threadcabin.com/tools/gauge-size-planner)

Turn a measured swatch into stitch and row counts for your finished size.

Wash and rest a sample in the project’s stitch pattern. Count stitches and rows inside measured central spans, excluding edge distortion.  Positive ease adds room to the target width; negative ease subtracts it. The rounded result is a planning count; fit repeats and construction details before casting on.

Formula: stitches ÷ swatch width × target width after ease; rows ÷ swatch height × target height. Each result follows the selected up, down, or nearest rounding rule and its stitch or row multiple.

- Stitches: 20
- Rows: 28
- Swatch width: 10 cm
- Swatch height: 10 cm
- Target width: 30 cm
- Target height: 5 cm
- Desired ease: 0 %
- Stitch multiple: 1
- Row multiple: 1
- Rounding policy: Nearest valid count