Knitting Buttonholes in 1x1 Ribbing

To knit a buttonhole in ribbing, work to the planned spot in rib, bind off the stitches that will form the opening, then cast the same number of stitches back on when you reach the gap on the next row. This makes a stable horizontal slit that holds its shape better than a simple eyelet in stretchy rib. The key is keeping the knit and purl columns in their original order on both sides of the opening.

Buttonholes in rib can look intimidating because ribbing stretches and changes appearance when you turn the work. Once you learn to read the knit “V” stitches and purl bumps, though, you can place neat buttonholes in a cardigan band, cuff, neck opening, or baby garment.

How 1×1 Ribbing Affects Buttonholes

In ribbing, knit and purl stitches alternate. From the right side, knit stitches look different from purl stitches. The goal of a ribbed buttonhole is to interrupt those columns as little as possible.

When knitting flat, the stitch sequence changes when you turn the work. A row worked as k1, p1 from the right side is commonly worked as p1, k1 on the return row. Rather than relying only on the written sequence, look at the stitch below the next loop:

Knit a stitch that looks like a knit-column V.
Purl a stitch that looks like a purl bump.
Keep this visual rhythm going on either side of the buttonhole.

A buttonhole works best when every opening begins at the same point in the rib repeat. For example, if the first buttonhole begins just before a knit column, start every later buttonhole just before a knit column too. That consistency keeps the whole button band looking intentional.

How to Knit a Bound-Off Buttonhole in 1×1 Rib

A bound-off-and-cast-on buttonhole is the most dependable choice for a ribbed baby cardigan or other garment that will be opened and closed often. It creates a real slit rather than stretching one small eyelet.

Choose the buttonhole style before marking your band.

Buttonhole Style	Best Use	Effect in 1×1 Rib
Bound-off slit	Most cardigan bands, baby garments, and larger buttons	Stable opening that is easy to adjust to the button
Yarn-over eyelet	Tiny buttons or decorative closures	Quick and small, but can stretch open in rib
Separate button loop	Finished garments or edge closures	Avoids cutting into completed ribbing

Step 1: Mark the Buttonhole Position

Lay the button band flat with the right side facing you.
Decide which front edge will overlap and which edge will carry the buttonholes.
Place a removable stitch marker at the beginning and end of the planned opening.
Check that the markers enclose the intended opening.

Do this before binding off anything. In ribbing, a buttonhole placed half a stitch out of rhythm can make one knit column disappear or create an awkward pair of purls beside each other.

If you are working from a garment pattern, use its placement instructions but still check the fabric itself. Pattern directions can tell you where a hole belongs, while the visible rib columns tell you whether you are about to work the next stitch as a knit or a purl.

Step 2: Bind Off the Opening in Pattern

Work in established rib until you reach the first marker.
Work the next stitch as it appears: knit a knit stitch or purl a purl stitch.
Lift the previous loop over the new stitch to bind it off.
Continue working and binding off stitches in the rib sequence until you reach the second marker.
Resume working the remaining stitches of the row in rib.

If you knit every stitch while making the opening, the top edge of the buttonhole can look stiff and out of place. Working the bind-off stitches as knit and purl keeps the edge closer in texture to the surrounding fabric.

The bound-off section will look like a small gap with a firm edge. That is exactly what you want; the replacement stitches on the next row will bridge the gap.

Step 3: Cast On Replacement Stitches

Turn the work and knit or purl back toward the buttonhole gap, following the visible rib.
When you reach the gap, cast on the same number of loops that you bound off.
Use a firm but flexible cast-on, such as a cable cast-on, so the top of the buttonhole does not sag.
Continue across the rest of the row in the established rib pattern.

As you work the new stitches, assign them knit or purl positions according to the columns on either side of the opening. The first cast-on loop does not automatically tell you whether it should be knit or purled; the surrounding rib does.

A useful check is to pause before working beyond the gap. Look at the stitches immediately to the left and right. The new section should continue the alternating knit-and-purl rhythm instead of producing two matching columns beside each other.

Step 4: Work the Next Row and Test the Opening

Turn to the right side and work across in rib.
Work each stitch as it appears, including the replacement stitches above the buttonhole.
Gently spread the fabric sideways to open the slit.
Push the actual button through the opening before making the next buttonhole.

The button should pass through without forcing, while the rib should spring back enough to keep the garment closed. If the slit feels too tight or too loose, undo the short section now and adjust the width of the bound-off area before continuing the band.

Make a Yarn-Over Eyelet Buttonhole in Rib

A yarn-over eyelet is the quicker alternative when you need a very small opening. It adds a loop with a yarn over, then removes a stitch with a decrease so the stitch count stays unchanged.

Work in rib to the planned buttonhole location on the right side.
Make a yarn over at the center of the intended opening.
Work a decrease with the neighboring stitches, choosing a knit decrease where the fabric needs a knit-looking column or a purl decrease where it needs a purl-looking column.
Continue the row in rib.
On the return row, work the yarn-over loop as a knit or purl so it joins the surrounding alternating columns.
Work another row in rib and test the eyelet with the button.

The exact placement of the yarn over and decrease depends on whether your button band begins with a knit or purl stitch and which side of the garment is facing you. Make a small rib swatch first if the eyelet is part of an important edge.

Buttonholes on Ribbed Baby Garments

Baby cardigans and wrap-style garments often use narrow ribbed bands because the rib lies close to the body and gives the edge a tidy finish. That stretch is useful for comfort, but it also means buttonholes need enough structure to avoid loosening with use.

Use the bound-off buttonhole method when:

The button band is worked in rib.
The garment will be buttoned and unbuttoned frequently.
The buttons are thicker than the yarn-over eyelet can comfortably accommodate.
You want each buttonhole to sit flat rather than pull open.

Keep an intact ribbed border at the front edge of the band. A hole placed too close to the edge can make the edge curl or twist when the button is fastened. It also helps to keep every opening aligned vertically by marking all placements before working the first one.

When the garment is finished, lay the button band over the opposite front and pass a needle or removable marker through each buttonhole to mark button placement. Sew the buttons on only after checking that the fronts meet evenly and the ribbing is not being pulled sideways.

Fix Common Problems With Ribbed Buttonholes

Problem	Likely Cause	Practical Fix
The buttonhole stretches too wide	A yarn-over eyelet is carrying too much strain	Replace it with a bound-off slit
The button will not fit through	The opening is too narrow for the chosen button	Rework the buttonhole with a wider bound-off section
Knit and purl columns look mismatched	Replacement stitches were worked by counting instead of reading the fabric	Undo to the cast-on row and rework each stitch according to the visible columns
The top edge of the hole is lumpy	The bind-off stitches were not worked in rib	Bind off by knitting knit stitches and purling purl stitches
The outer band edge twists	The buttonhole is too close to the edge or interrupts the edge stitch	Move the opening inward while preserving a clean edge column
One buttonhole looks different from the others	It began at a different point in the rib repeat	Make each opening begin before the same type of rib column

Do not try to fix a mismatched rib column by simply knitting or purling extra stitches in the next row. That may hide the issue briefly, but it shifts the rib pattern and usually becomes more visible after the fabric is stretched.

Check Buttonholes Before Sewing Buttons

Before you commit to the buttons, inspect every hole from both sides of the garment.

The buttonhole edges should lie flat without a long, loose ladder.
The knit and purl columns should continue cleanly on both sides of every opening.
Each button should pass through with gentle pressure.
The ribbed fronts should meet without twisting or pulling apart.
Buttonholes should line up in a straight vertical path on the band.

If one opening is noticeably different, it is worth reworking it before sewing buttons on. Ribbing is forgiving when worn, but uneven buttonholes are most visible along a neat front band.

For future projects, record the placement of the first buttonhole. That one note makes matching later buttonholes much easier.

Frequently Asked Questions

What Is the Easiest Way to Knit a Buttonhole?

The easiest reliable buttonhole is a bound-off slit: work to the spot in rib, bind off the opening stitches in pattern, and cast the same number of stitches back on from the next row. It is easier to control than a yarn-over eyelet because you can test the actual button before continuing. In ribbing, work the bind-off stitches as they appear so the surrounding fabric stays neat.

What Are the Main Types of Knitted Buttonholes?

The main knitted buttonholes are a bound-off-and-cast-on slit and a yarn-over eyelet. A bound-off slit creates a more stable opening, while a yarn-over eyelet creates a small decorative hole with a yarn over and a decrease. Ribbed button bands usually benefit from the firmer bound-off style.

Can I Make a Buttonhole in Single Rib?

Yes, you can make a buttonhole in single rib. A bound-off-and-cast-on slit is a dependable choice because it creates a stable opening in stretchy ribbing. In ribbing, knit and purl stitches alternate across the row. Work the buttonhole while preserving that alternating rhythm, and follow the rib pattern on the next row after you turn the work.

How Do I Add Buttonholes to Knitting That Is Already Finished?

The cleanest option is to add a separate button band along the finished edge, then knit the buttonholes into that new band. Pick up stitches along the edge, work a ribbed strip, make bound-off-and-cast-on buttonholes, and attach or finish the band as the garment construction allows. If you do not want to add a band, sewn button loops are usually less disruptive than cutting into completed ribbing.

Why Does the Rib Pattern Change From K1, P1 to P1, K1?

The pattern changes because flat knitting is turned at the end of each row, so you are viewing the opposite side of the same stitch columns. A knit column should continue as a knit column and a purl column should continue as a purl column. Reading the fabric is more reliable than memorizing the written sequence, especially around cast-on buttonhole stitches.