My handmade sweater collection is slowly becoming a collection of sewing patterns, too. There is the pullover, the cardigan to throw over everything, and the boxy one with a little more room. Apparently, I still had space for one more: a lightweight cardigan with a closer fit, a round neckline, and a row of small buttons.
This fitted cardigan sewing pattern is for the days when I want a lighter layer that works buttoned up as a top or open over a simple camisole. The details are quite simple, so the fabric and buttons can change its whole personality.
If you have already made my boxy cardigan, this gives you a different shape to try: narrower sleeves, a closer silhouette, and a round neckline instead of a deep V.
Below, I’ll take you through the fabric choices, front plackets, neckline finish, and sewing steps. The video comes first, and the free PDF pattern in 10 sizes is at the end of this post for my subscribers.
Watch the Fitted Cardigan Sewing Video
Watch the video for the full sewing sequence, then use the written steps below while you work. The front neckline corners are the part where seeing the folds in motion is especially helpful: the plackets and neckline strip meet here to create a clean finish.
You can pause at each stage and come back to the instructions whenever you need a measurement or a reminder of which way to fold the fabric.
About This Fitted Cardigan Pattern
This is a lightweight button-front cardigan designed for knit fabric with suitable stretch and good recovery. It has long sleeves, a round neckline finished with a narrow strip, and folded front plackets.
The pattern includes:
- 10 sizes
- Mirrored front pieces and a back cut on the fold
- Long sleeves
- A neckline finishing strip
- A finished button placket width of 2 cm | ¾ in
Seam allowance: 1 cm | ⅜ in, unless the pattern indicates otherwise. Follow the separate hem and placket markings where shown.
Choose your size using the measurements supplied with the PDF. A fitted cardigan should still feel comfortable when you move, and the front should sit smoothly when buttoned. Do not size down just because the fabric stretches.
I would treat this as an advanced beginner project. The main seams are straightforward, but the neckline corners, buttonholes, and handling of lightweight knits need a little patience. If you would prefer to practice without a button closure first, my open-front cardigan sewing pattern is another option.
Best Fabrics for a Lightweight Cardigan
Look for a fabric that feels soft against your skin, stretches comfortably, and returns toward its original shape when released. The name on the fabric label is only a starting point: two jerseys can behave very differently.
| Fabric | What to expect | What to check |
|---|---|---|
| Cotton jersey with elastane | Soft, casual, easy to wear | Good recovery and enough stretch for the pattern |
| Fine sweater knit | A soft, classic sweater look | A stable structure that will support the front plackets |
| Fine rib knit | Texture and a close-fitting look | Good recovery; avoid fabric that stays stretched out |
| Lightweight interlock | A smooth, relatively stable surface | Enough stretch; some interlocks have limited recovery |
| Modal or bamboo jersey | A fluid, drapey cardigan | It can shift while cutting and stretch while sewing |
| Lightweight pointelle | A delicate, textured finish | Enough strength around seams and buttonholes |
For a first version, I would choose a stable cotton jersey with elastane or a fine sweater knit that is easy to handle. Very loose knits and extremely thin jerseys make the front edges harder to control.
Thick sweatshirt fleece and heavy ponte will give a substantially heavier result than this lightweight design is intended to have.
If you are comparing fabrics, my guide to different types of knit fabrics will help you narrow down the options. Before cutting, also measure the fabric’s stretch and check its recovery against the pattern requirements.
How Much Fabric Do You Need?
The following amounts are preliminary shopping estimates, based on fabric approximately 140–150 cm | 55–59 in wide. They are not a verified cutting layout; check the actual pattern pieces and your chosen length before buying.
| Pattern sizes | Estimated fabric length |
|---|---|
| 1–2 | 160–180 cm | 63–71 in |
| 3–4 | 180–200 cm | 71–79 in |
| 5–6 | 200–220 cm | 79–87 in |
| 7–8 | 220–240 cm | 87–94 in |
Allow extra fabric for shrinkage, directional designs, or matching stripes. An additional 20–30 cm | 8–12 in can help with small repeats; large repeats may need more.
Prewash and dry the fabric as you intend to care for the finished cardigan. Let it rest flat before cutting so you are not working with stretched or twisted fabric.
Supplies
- Knit fabric suitable for the pattern
- Lightweight fusible knit interfacing for both front plackets
- Small buttons; approximately 5–7 as a starting estimate, adjusted for your finished length and spacing
- Polyester sewing thread
- A ballpoint or stretch needle suited to your fabric, usually size 70/10–80/12 for lightweight knits
- A sewing machine with a narrow zigzag or suitable stretch stitch
- Scissors or a rotary cutter, pins or clips, and a removable fabric marker
- An iron and pressing cloth
Optional extras include a walking foot, stretch twin needle, flexible shoulder stay tape, and temporary stabilizer for the buttonholes.
Support the Button Plackets
The front edges need enough support to hold the buttons and buttonholes without becoming stiff.
Apply soft fusible knit interfacing to the wrong side of both placket areas, following the pattern markings. Test it on a scrap first to check the heat setting, adhesion, and finished feel.
Flexible stay tape can also help stabilize shoulder seams in a soft knit. I would not routinely stabilize the entire neckline or armholes: unnecessary tape can restrict the stretch or alter the fit. Use additional support only where your fabric and construction need it.
Choose Small, Lightweight Buttons
For a placket measuring 2 cm | ¾ in wide, buttons around 9–12 mm | approximately ⅜–½ in are a useful starting point.
Color-matched buttons keep the finish subtle. Mother-of-pearl adds a little shine, while small matte buttons give a simple everyday look. Check the weight as well as the size; heavy buttons can pull on a delicate knit.
Lay several options on your fabric before deciding. This is one of those small choices that changes the finished cardigan surprisingly much.
Print and Cut the Pattern
Print at 100% or Actual Size, then measure the test square before printing and assembling all the pages. If you need help with the setup, follow my PDF sewing pattern printing and assembly guide.
Lay the fabric flat without stretching it. Follow both the grainline and stretch-direction markings. The required stretch should run around the body; do not rotate pieces simply to squeeze them onto the fabric. My fabric stretch direction guide explains what to check before cutting.
| Pattern piece | Cut |
|---|---|
| Front | 2 mirrored pieces |
| Back | 1 on the fold |
| Sleeve | 2 mirrored pieces |
| Neckline strip | 1, following the pattern markings |
Transfer all notches, fold lines, center-front marks, and button-placement guides. Mark the wrong side of the fabric if both sides look similar.
Keep the placket fold lines visible until the front edges are finished. They are especially useful when preparing the neckline corners.
Sewing Machine Settings
A regular sewing machine is enough for this project. Use a stitch that allows the seams to stretch without the thread breaking.
| Area | Suggested stitch | Starting settings |
|---|---|---|
| Shoulders, sleeves, and side seams | Narrow zigzag | Length 2–2.5 mm; width 1–1.5 mm |
| Neckline attachment and topstitching | Narrow zigzag or suitable stretch stitch | Test on the same number of layers first |
| Stabilized front plackets | Narrow zigzag | Length 2.5–3 mm; width 0.5–1 mm |
| Sleeve and bottom hems | Zigzag | Length 2.5–3 mm; width 1.5–2.5 mm |
| Twin-needle hems | Machine-compatible twin-needle setup | Start around 3–3.5 mm stitch length and test |
These are starting points, not fixed rules. Test on scraps of your actual fabric, including interfacing where appropriate. Gently stretch the sample and check for broken stitches, puckering, or tunneling.
A longer straight stitch does not make a seam stretchy. Use it only in stabilized areas that do not need to stretch and only after testing.
If the fabric starts waving or the machine skips stitches, stop and adjust your setup before continuing. My knit-sewing troubleshooting guide covers those problems in more detail.
Cutting Your Cardigan
Lay your fabric flat without stretching it.
For most knit fabrics, the greatest stretch should run horizontally around your body. If you’re unsure, check my Fabric Stretch Direction Guide before cutting.
Cut the following pieces:
| Pattern piece | Quantity |
|---|---|
| Front | Cut 2, mirrored |
| Back | Cut 1 on the fold |
| Sleeve | Cut 2, mirrored |
| Neckline band | Cut 1 |
Transfer the neckline, shoulder, sleeve, and button placement markings from your sewing pattern.
Before we start sewing, mark the wrong side of each piece if your fabric looks similar on both sides. It’s a tiny step that makes assembling the cardigan much easier.
How to Sew the Fitted Cardigan
Step 1: Interface the Front Plackets
Place the front pieces wrong side up. Fuse lightweight knit interfacing to both placket areas, keeping it within the section that will fold to the inside.
Use the temperature and pressing time recommended for the interfacing, with a pressing cloth if needed. Lift and lower the iron rather than sliding it along the fabric.
Let the pieces cool flat before moving them. Add flexible shoulder stay tape if your fabric needs that support.
Step 2: Sew the Shoulder Seams
Place the back right side up, then lay the front pieces on top, right sides together.
Match the shoulders, pin, and sew with a 1 cm | ⅜ in seam allowance, using a narrow zigzag or stretch stitch.
Press the seam allowances gently toward the back.
Step 3: Finish the Neckline
Start by preparing the top of each placket according to the marked fold lines. Turn the raw-edge allowance under by 1 cm | ⅜ in, then temporarily fold the placket section toward the right side at the neckline corner. This temporary fold will enclose the end of the neckline strip when the corner is turned back.
Fold the neckline strip in half lengthwise, wrong sides together, and match its long raw edges. Pin it to the right side of the neckline, aligning the raw edges and matching the pattern markings.
At each front corner, position the end of the strip beneath the temporarily folded placket section.
Check the video here if you need to see how the layers sit together before stitching.
Sew with a 1 cm | ⅜ in seam allowance, using a narrow zigzag or suitable stretch stitch.
distribute the strip ,
avoid stretching the cardigan neckline as you sew.
Carefully reduce bulk
at the front corners without cutting the stitches.
Turn the placket corners back to the wrong side, then turn the neckline strip to the inside as shown in the video.
Press lightly, pin, and topstitch the strip in place with a narrow zigzag or another suitable stretch stitch. Check that both front corners sit neatly and that the neckline lies flat.
Step 4: Sew the Button Plackets
Continue the folds down each front edge. Turn the raw edge inward by 1 cm | ⅜ in, then fold on the marked placket line to create a finished width of 2 cm | ¾ in.
Measure the width at several points and pin without stretching the fabric.
Stitch close to the inner folded edge with a narrow zigzag. A straight stitch is an option only if the stabilized placket does not need to stretch and your test sample lies flat.
Press gently.
Compare the two fronts to make sure the plackets are even and the neckline corners match.
Step 5: Attach the Sleeves
Lay the cardigan open, right side up. Place a sleeve against its armhole, right sides together.
Match the sleeve’s shoulder marking to the shoulder seam. Pin along the curve and sew with a 1 cm | ⅜ in seam allowance.
Support the fabric as it passes through the machine. Do not pull the armhole to force it to fit; check the notches and piece orientation if the edges do not match as expected.
Repeat for the second sleeve.
Step 6: Sew the Sleeve and Side Seams
Fold the cardigan right sides together, matching the sleeve edges, underarm seams, and side seams.
Pin, then sew from the sleeve opening through the underarm and down to the bottom edge in one continuous seam. Use a narrow zigzag or stretch stitch and the 1 cm | ⅜ in seam allowance.
Repeat on the other side. Turn the cardigan right side out and check the fit before hemming. Pin the fronts together at the marked center front to assess the intended overlap.
Step 7: Hem the Sleeves
Turn each sleeve hem to the wrong side by the allowance marked on the pattern. The draft allowance is approximately 2–3 cm | ¾–1¼ in; use the pattern’s exact marking so you retain the intended sleeve length.
Press gently and pin evenly. Stitch with a zigzag or stretch twin needle, taking care not to pull the sleeve opening as you sew.
Step 8: Sew the Bottom Hem
Turn the bottom edge to the wrong side using the hem allowance marked on the pattern. The draft allowance is approximately 3–4 cm | 1¼–1⅝ in.
Check that the two fronts finish at the same length. At each front corner, tuck the raw hem edge neatly within the placket folds before securing it.
Pin, then stitch with a zigzag, suitable stretch stitch, or twin needle. Press by lifting and lowering the iron so the hem does not stretch out.
Step 9: Add Buttonholes and Buttons
Try the cardigan on with the front plackets overlapped at the marked center front. Check the button positions before making permanent buttonholes, especially around the fullest part of the bust, where a large gap between buttons can allow the front to open.
Spacing of approximately 6–8 cm | 2⅜–3⅛ in can be a starting point, but adjust it to the pattern, cardigan length, and fit. Place the top and bottom buttons first, then distribute the remaining ones between them.
Make a test buttonhole using scraps with the same fabric, interfacing, and number of layers as the finished placket. Add temporary tear-away or wash-away stabilizer if needed, choosing one suitable for your fabric.
Sew the buttonholes and open them carefully. Overlap the fronts again and transfer the button positions through the finished buttonholes, then sew the buttons securely to the opposite placket.
Give the cardigan a final gentle press and check that the front lies smoothly when buttoned.
Small Details That Make a Difference
A smooth button front starts with fit. Interfacing supports the fabric, but it will not fix a cardigan that is too tight across the bust. Check the fit with the correct overlap before sewing buttonholes.
Let the machine move the fabric. Pulling from either side can stretch a lightweight knit and leave wavy seams or hems.
Choose the length before placing the buttons. If you make a shorter version, adjust the front and back equally, preserve the hem allowances, and plan the button spacing again.
Keep the pressing gentle. Too much heat or pressure can flatten texture or leave marks, so test on a scrap first.
Frequently Asked Questions
Can I sew this cardigan without a serger?
Yes. A regular sewing machine with a narrow zigzag or suitable stretch stitch can handle the construction. Test the seam and hem finishes on your fabric before starting.
Can I use rib knit?
Yes, if its stretch and recovery suit the pattern. Check how it behaves after being stretched: fabric that stays wider can make the cardigan lose its shape during wear.
Do I need interfacing for the buttonholes?
I strongly recommend lightweight interfacing in both plackets. It supports the closure and makes buttonholes easier to sew neatly. Always test the combination on a scrap first.
Can I make it cropped?
Yes. Shorten the front and back by the same amount, keeping the side seams aligned and retaining the intended hem allowances. Recheck the button placement for the new length.
Can I leave off the buttons?
Yes, you can finish the plackets and wear it open. If you want a pattern designed specifically as a relaxed open layer, choose the open-front cardigan linked near the beginning of this post.
How to Style Your Cardigan with Other Handmade Pieces
One of the nicest parts of having more handmade clothes is finding ways to wear them together. This cardigan adds a lighter, closer-fitting layer to the mix—and you can plan its length and color around something you have already sewn.
Buttoned Up with Straight-Leg Pants
For an easy everyday outfit, pair the cardigan with my straight-leg pants and wear it buttoned as a top. A cardigan ending around the upper hip works nicely here, with loafers, ballet flats, or simple sneakers.
Try a soft cream cardigan with olive pants, or a muted pink knit with charcoal. If the bottom edge catches when you sit down, leave the lowest button undone.
A Shorter Cardigan with Wide-Leg Pants
My high-waisted wide-leg pants would work beautifully with a shorter version of this cardigan. The closer-fitting top lets the pleats and wider legs stand out, while a hem near the waistband keeps the waist visible.
If you already have the pants, try them on while deciding your cardigan length. Mark where you want the finished hem to sit, then keep the required hem allowance when adjusting the pattern.
A Light Layer over a Slip Dress
Wear the cardigan open over my slip dress to add a little coverage without hiding the dress underneath. Small buttons and a fine knit keep the outfit light.
A plain cardigan is especially useful over a printed dress: choose one color from the print for a combination that feels connected. Add sandals for warmer days or tights and ankle boots when it gets cooler.
With a Simple Knit Dress
For a soft, comfortable outfit, layer it over my beginner knit dress. Keep the cardigan open so the dress forms a continuous line underneath, or fasten a few buttons if you prefer more coverage.
Check that there is enough room through the cardigan sleeves for the layer underneath. A fitted cardigan works best over something fairly smooth and lightweight.
Before choosing fabric for your next version, take a look at the clothes you have already made. A cardigan that works with your favorite pants and two dresses may become much more useful than one sewn without an outfit in mind.
One More Shape for My Handmade Sweater Collection
I like seeing how these projects sit beside each other. My pullover sweater covers the simple pull-on option, the open-front cardigan adds a relaxed layer, and the boxy cardigan has its own roomier shape. This one brings small buttons and a closer fit into the collection.
For a higher neckline, there is also my basic turtleneck sewing pattern. Between them, there are quite a few ways to turn a piece of knit fabric into something you can actually use in your wardrobe.
That is what keeps me interested in sewing another sweater: a different neckline, a change in length, or a softer fabric gives the next project a purpose of its own. This cardigan would be lovely in a simple solid color that lets the buttons stand out—or in a print with matching buttons that almost disappear.
Which version would you make: a shorter cardigan to wear buttoned as a top, or a slightly longer one for layering?
Download the Free Fitted Cardigan Sewing Pattern
Subscribe to continue reading
Subscribe to get access to the rest of this post and other subscriber-only content.
