How to Troubleshoot Caught Floats Showing Through Stranded Knitting
When caught floats show through stranded knitting, first check that the unused yarn stays behind the fabric rather than becoming part of the knitted stitch. Then check float tension and move catches so they do not stack in the same stitch column. These corrections address different problems, so inspect both sides before changing your technique.
This guide is for knitters who can already follow a two-color chart but are seeing unwanted flecks at float catches. Traditional catches hold unused yarn against the back of the fabric, and individual catches can remain visible, especially with strongly contrasting colors. The aim is to identify what your fabric needs before you knit more of it. Knitting instructor Amy Snell explains this connection between caught floats and visible color blips in The Answer to Everything that Bugs You About Colorwork.
Identify what is showing on the front
A float is the unused strand carried behind stitches until that color is needed again. Catching it anchors that strand behind a working stitch; it should not create an additional stitch in the carried color. The photographs in Knotions’ Stranding and Catching in the Back show this distinction.
Stop at an affected area and compare the front with the back. The following diagnostic sequence combines the construction checks explained in the tutorials cited below; it is a troubleshooting aid rather than a measured test.
| What you see | What to check first | Next action |
|---|---|---|
| Both colors form the same knitted loop | Whether both strands were pulled through | Undo that stitch and remake it with only the charted color |
| A small contrasting fleck corresponds to a catch behind it | Catch construction and local tension | Work one catch slowly and inspect it |
| Flecks form a vertical line | Whether catches occupy the same column on successive rounds | Stagger their positions |
| The surrounding fabric gathers or puckers | Whether floats span the full fabric width | Spread worked stitches before catching or changing colors |
| Separate catches remain visible in otherwise even fabric | Whether traditional catches suit this yarn combination | Compare a blocked sample before continuing |
Check the fabric relaxed and then gently spread it to the width it will need in the finished project. Do not judge solely by an exaggerated stretch: the useful question is whether the catches remain distracting at the fabric’s intended width.
Make sure the catch stays behind the stitch
A correct catch traps the unused strand without knitting a new stitch with it. If you pull both colors through the old stitch, the resulting loop contains both colors. That requires remaking the stitch; moving the next catch will not change its construction.
For a right-side knit stitch with the working yarn in your right hand and the unused yarn in your left, use this sequence:
- Keep both strands behind the fabric and insert the right needle knitwise into the next stitch.
- Lay the unused left-hand strand over the right needle.
- Wrap the right-hand working yarn as for a normal knit stitch.
- Remove the unused strand from its temporary wrap on the needle.
- Draw only the working yarn through and complete the stitch.
Inspect the result immediately: the new stitch should contain the charted color, with the unused strand caught behind it. This sequence follows Teabreak Knitter’s illustrated instructions for catching the left-most color. That page provides separate instructions for catching the other strand and for working from the purl side; use the sequence that matches your yarn arrangement.
Practice a few catches slowly before returning to normal speed. Check that you have not left the temporary wrap on the needle as an extra loop.
Give the float enough length before tightening anything
Completed stitches tend to bunch together on the right needle. A float laid across that compressed group can be too short once the stitches spread out. Ysolda’s Three ways to hold yarn for stranded colourwork identifies this as a cause of puckering and recommends spreading the worked stitches before switching colors.
Apply that check at a catch as well: spread the stitches the float must span, make the catch, and continue without tugging the unused yarn snug against the needle. You are allowing yarn for the fabric’s width, not making a large hanging loop.
If the problem appears mainly at double-pointed needle junctions or magic-loop divisions, inspect those transitions separately. Floats can cut across the corner between needles and become too short. Ysolda recommends spreading the last stitches on the previous needle before working onto the next in Stranded Colourwork: Tips for Small Circumferences.
Avoid repeatedly pulling on the carried yarn to hide a fleck. First establish whether the surrounding fabric can lie flat. Brooklyn Tweed explains that overly tight floats draw the fabric inward, while excessively loose floats can also affect the stitches, in Stranded Colorwork 101.
Stagger catches across successive rounds
When catches occur in the same stitch column on consecutive rounds, they can create a repeated disturbance that makes the carried color more noticeable. Both Teabreak Knitter and Berroco’s design team advise against stacking catches.
Read the neighboring chart rounds before choosing a catch position. Mark catches on a working copy of the chart separately from the stitch colors: a catch changes how you carry the unused yarn, not which color you knit.
For a seven-stitch stretch of background color, Berroco gives this practical arrangement:
- On the first row, catch the carried color at background stitch 4.
- On the next row, catch at background stitches 3 and 5.
The second arrangement moves the catches away from the previous row’s column. Berroco describes the additional catch as optional.
Use that example to understand placement, then adapt it to your chart and fabric. Staggering can break up a visible vertical line; it does not establish that every individual catch will disappear.
Choose catch spacing from the fabric, not a fixed count
There is no universal number of stitches that every float should cross before being caught. Five stitches in a fine yarn and five stitches in a thick yarn cover different distances. Knotions explicitly cautions that stitch-count rules overlook gauge.
Look at the actual length of the float, the project’s construction, and any instructions supplied with the pattern. Add catches where they serve the fabric rather than automatically catching every few stitches throughout a round.
A simple illustrative calculation shows why gauge matters. At 28 stitches per 10 centimeters, seven stitches occupy approximately 2.5 centimeters. At 20 stitches per 10 centimeters, the same seven stitches occupy approximately 3.5 centimeters. These are hypothetical gauges calculated as stitch count divided by stitches per centimeter; they are not recommended float-length limits.
If changing catch spacing, inspect both the front and the remaining spans behind it. Fewer catches provide fewer attachment points, but they also leave longer floats. Compare the complete result rather than choosing spacing solely to hide front-facing flecks.
Test one correction at a time
Use the project yarns and a small repeat containing the troublesome float. For a project worked in the round, make the comparison in the round too. Brooklyn Tweed recommends circular swatching for circular stranded work and using the swatch to practice yarn handling and test color combinations in Stranded Colorwork 101.
Work a short comparison in this order:
- Confirm that each new stitch contains only its charted color.
- Keep your existing catch positions while deliberately spreading the worked stitches.
- Maintain that tension routine and stagger the catch positions.
- Record which section used each arrangement.
- Block the sample according to the yarn’s care instructions and compare it when dry.
This sequence helps separate a construction error from tension and placement effects. Keep yarn handling consistent during the comparison. If you change needle size as another experiment, recheck gauge before applying that change to the project.
Churchmouse recommends wet blocking stranded work and blocking swatches to understand the yarn and stitch pattern in A Sampling of Stranded Colorwork. Treat the dried sample as evidence of how your combination behaves. Blocking does not change a two-color loop into a correctly constructed single-color stitch or relocate stacked catches.
Decide whether to rework the affected section
For an error just made, undo stitches back to the catch and remake it. For an older affected section, establish a satisfactory method on the sample before unraveling and reknitting. Otherwise, you may reproduce the same result.
If correctly formed, staggered catches remain visible in even fabric, consider whether you like the appearance after blocking. You can also test ladderback jacquard as an alternative way to manage long floats within stranded knitting. It forms a separate mesh behind the fabric rather than attaching each float directly to a front-fabric stitch. Amy Snell explains that structural difference in her Modern Daily Knitting article. It requires its own setup and finishing instructions, so practice it before incorporating it into a project.
Before continuing, choose a small stretch of fabric that shows the correction clearly. Confirm that its stitches contain the intended colors, its floats allow the required width, and its catches look acceptable after blocking. That gives you a repeatable method for the remaining knitting and a concrete basis for deciding how much earlier work to redo.
Sources
- Stranding and Catching in the Back — Knotions
- Catching floats in stranded knitting — Teabreak Knitter
- Three ways to hold yarn for stranded colourwork — Ysolda
- Stranded Colourwork: Tips for Small Circumferences — Ysolda
- Lopi Week: Tips for managing colorwork — Berroco Design Team Blog
- Stranded Colorwork 101 — Brooklyn Tweed
- A Sampling of Stranded Colorwork — Churchmouse Yarns & Teas
- The Answer to Everything that Bugs You About Colorwork — Modern Daily Knitting
