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Colorblock Oversized Cardigan Pattern

Colorblock Oversized Cardigan Pattern
4.3★ Rating
12-15 Hours Time Needed
3.1K Made This
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Beginner Friendly Level

Perfect for those just starting their crochet journey, with clear instructions and simple techniques

⏱️

Multi-Day Project

A rewarding 12+ hour journey—perfect for dedicated crafters who love detailed work.

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Casual Chic

Relaxed style with a modern twist, perfect for everyday wear while maintaining that handcrafted uniqueness.

About This Colorblock Oversized Cardigan Pattern

This pattern creates a colorblock oversized cardigan worked in panels and sleeves, ideal for layering and bold colorplay. It uses simple stitches (hdc, dc, BLO techniques) and is designed for easy customization of color layout and size. The instructions guide you through front panels, sleeves, back panel options, assembly with mattress stitch, and finishing details like ribbings and buttons.

Colorblock Oversized Cardigan Pattern crochet pattern - detailed view of completed project

Perfect for beginners who want a wearable project with impact and for improvers who love colorwork. You can easily change colors, adjust width and length, and personalize the look.

Why You'll Love This Colorblock Oversized Cardigan Pattern

I absolutely love this pattern because it lets me play freely with color blocks while staying within a simple stitch pattern. The construction is straightforward — panels and sleeves — so I can make adjustments quickly and test new color combinations. I enjoy how the mattress stitch creates a clean, almost invisible seam that keeps the focus on the colors. Making this cardigan always feels rewarding because it becomes a wearable piece that draws compliments. The pattern is flexible, so I keep coming back to it for gifts and wardrobe staples.

Colorblock Oversized Cardigan Pattern step 1 - construction progress Colorblock Oversized Cardigan Pattern step 2 - assembly progress Colorblock Oversized Cardigan Pattern step 3 - details and accessories Colorblock Oversized Cardigan Pattern step 4 - final assembly and finishing

Switch Things Up

I love how easy it is to customize this cardigan by swapping yarn colors; try muted neutrals for a subtle look or bright neons for a statement piece.

To make a chunky, cozy version, use a bulkier yarn and a larger hook; your cardigan will grow in size and take on a more textured appearance.

For a lightweight spring cardigan, choose a sport or DK weight yarn and reduce the hook size; adjust chain counts to maintain the desired width.

I often add stripes or narrow color bands between large blocks to add visual interest without changing construction.

You can change sleeve length easily — stop when the sleeves reach your preferred elbow or wrist length and finish with the cuff instructions.

I sometimes embroider small motifs or add appliques to the front panels for a personalized touch.

Try different ribbing styles for the hem and cuffs: single crochet ribbing, 1x1 rib, or extended BLO ribs all give different looks.

I recommend planning your color layout on paper first so the rows and joins align across panels during assembly.

For a fitted look, reduce chain counts slightly for the front panels and shorten the body rows; for more oversized, increase chain counts and add rows.

I also enjoy making matching accessories like hats or a headband using leftover yarn to create a coordinated set.

Common Mistakes & How to Fix Them

✗ Skipping stitch markers when shaping the V on the front panels causes confusion and missed decreases; place markers at key rows and at the hdc2tog location to stay on track. ✗ Changing colors without securing tails creates a messy finish and loose ends; fasten off and weave in ends or use a slip knot and secure joins neatly as you go. ✗ Counting rows incorrectly for size adjustments leads to mismatched panels; always include the stitch marker row when counting and confirm both front panels match the back panel row count. ✗ Using inconsistent tension makes panels differ in width; keep the same hook and check your gauge, adjusting hook size if needed to match the 5"x5" gauge. ✗ Attaching sleeves without aligning marked rows causes lopsided sleeves; mark matching rows on front and back panels before mattress stitching and pin or clip to confirm alignment.

Colorblock Oversized Cardigan Pattern

Make a bright, cozy colorblock oversized cardigan with this beginner-friendly written pattern. You will work simple stitches and assemble panels and sleeves to create a customizable, statement cardigan. The design allows for flexible color layouts and easy sizing adjustments so you can make it your own. Follow step-by-step photos and clear instructions to finish a comfy, wearable piece.

Beginner Friendly 12-15 Hours

Materials Needed for Colorblock Oversized Cardigan Pattern

— Main Fabric

  • 01
    Worsted weight yarn (5-ply milk cotton recommended, 80% cotton, 20% acrylic)
  • 02
    XS - approximately 400g total yarn
  • 03
    S - approximately 600g total yarn
  • 04
    M - approximately 800g total yarn
  • 05
    L - approximately 1,000g total yarn
  • 06
    XL - approximately 1,200g total yarn
  • 07
    XXL - approximately 1,400g total yarn
  • 08
    Example: For size S used 150g of each yarn color (total of 4 colors) if making the same color block layout

— Tools Required

  • 01
    Crochet hook size 5.0mm
  • 02
    Stitch markers
  • 03
    Tapestry needle
  • 04
    Scissors
  • 05
    Measuring tape
  • 06
    Buttons
  • 07
    Optional: pins for assembly

Progress Tracker

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— Front Panels :

Front Panel 1 :

Using your color of choice: Step 1. Chain 35 (39, 43, 47, 51, 55).

Step 2 :

Skip 2ch then hdc on the 3rd ch from the hook.

Step 3 :

Hdc on each ch until you reach the end of the row. You should have a total of 33 (37, 41, 45, 49, 53) hdcs.

Step 4 :

Ch 2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the end of the row.

Step 5 :

Repeat Step 4 until you make a total of 24 (26, 28, 30, 32, 34) rows.

Info :

You will now start working on the upper part of the cardigan. To do the V-shape you will start making the alternating decrease - non-decrease rows.

Step 6 :

Ch 2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the last 2 sts. For the last 2 sts, make an hdc2tog (decrease row).

Info :

To make an hdc2tog, yarn over, insert hook into the stitch, yarn over and pull up a loop (3 loops on the hook), yarn over, insert hook into the next stitch, yarn over and pull up a loop (5 loops on the hook), yarn over and pull through all 5 loops on the hook.

Step 7 :

Ch 2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the end of the row (non-decrease row).

Step 8 :

Ch 1. Flip your work then make an hdc2tog on the first 2 sts. Hdc on each of the next sts until you reach the end of the row (decrease row).

Step 9 :

Repeat steps 7-8 until you make a total of 18 (20, 22, 24, 26, 28) rows starting from the row where you placed the stitch marker. Include the row with the stitch marker when counting.

Step 10 :

After the last hdc on the last row, ch 1 and fasten off. If you ended the row on the outer side of the panel (the one with a straight edge), leave a tail that is 3x longer than the length of the last row of the front panel. If you ended the row on the inner side of the panel (the one with the V-shape), leave a tail long enough for weaving.

Front Panel 2 :

Using your color of choice: For the lower half of the front panel 2, repeat steps 1-5 of Front Panel 1. You will now start working on the upper part of the cardigan. To do the V-shape you will start making the alternating decrease - non-decrease rows.

Step 6 :

Ch 1. Flip your work then make an hdc2tog on the first 2 sts. Hdc on each of the next sts until you reach the end of the row (decrease row).

Info :

Put a stitch marker on your hdc2tog to remind you which side you are going to do the hdc2tog. The stitch marker will also help you count the rows for the upper part of the cardigan.

— Sleeves :

Cuff Ribbing :

Using your color of choice: Step 1. Chain 10.

Step 2 :

Hdc on the 3rd chain from the hook. Hdc until you reach the end of the row. You should now have a total of 8 hdcs.

Step 3 :

Ch 2. Flip your work. Do a BLOhdc until you reach the end of the row. Make sure you have a total of 8 hdcs. To do a BLOhdc, insert your hdc on the back loop only of each st.

Step 4 :

Repeat step 3 until you make a total of 12 (13, 14, 15, 16, 17) rows or until the length of the cuff ribbing when stretched covers your entire wrist. Make sure you are comfortable. Some materials stretch less so you might want to add a few more rows.

Step 5 :

Now you will attach both ends of the cuff ribbing by doing a sl st on the inner loops only (see images for reference).

Step 6 :

Once you reach the end of the row, make 2sc on the 1st hdc post then 1 sc on the next hdc post.

Step 7 :

Place alternating 2sc then 1 sc on each of the next hdc posts until you reach the end. When you reach the end of the row, sl st on the st before the 1st sc that you created. End of the row.

Info :

Put a stitch marker on the seam to mark the underarm area and to align the sleeve later when attaching to the body panels.

Sleeve Body :

If you are using the same yarn that you used for the cuff: Ch2 then dc on the same st (then go to Step 2). If you are using a color different from the cuff: Step 1. Insert the hook into any st in the row. Sl st. Ch2 then dc on the same st.

Step 2 :

2dc on the next st. Do the alternating 1dc and 2dc on each of the next sts until you reach the end of the row. Sl st on the 1st dc of the row. End of the row.

Step 3 :

Ch2. Dc on the next st then 2 dc on the next st.

Step 4 :

Do the alternating 1dc and 2dc on each of the next sts until you reach the end of the row. If you ended your row with 1dc, add 2dc on the same stitch where you placed the ch2 at the start of the row (see images). Sl st on the 1st dc of the row. If you ended your row with 2dc, add 1dc on the same stitch where you placed the ch2 at the start of the row. Sl st on the 1st dc of the row.

Step 5 :

Ch2. DC on the same st. 1dc on each of the next 2 sts. Then 2dcs on the next st.

Step 6 :

Place 1dc into each of the next 3 sts then 2dcs on the next st. Repeat this step until you reach the end of the row. Sl st on the 1st dc of the row.

Step 7 :

Ch2. DC on the next st then 1 dc on each of the next sts until you reach the end of your row. Add another dc on the same stitch where you placed the ch2 at the start of the row. Sl st on the 1st dc of the row.

Step 8 :

Ch2. Dc on the same st then 1 dc on each of the next sts until you reach the end of the row. Sl st on the 1st dc of the row.

Step 9 :

Repeat steps 7-8 until you reach your desired sleeve length.

Step 10 :

After the last dc on the last row, ch 1, cut the yarn leaving a tail with a length that is equal to 4x the length of your front panels. You will use this tail later when you attach the different panels together.

— Back Panel :

Design 1: Horizontal Layers :

NOTE: Identify how you want to layout your colors first, as well as how you want to match it with the front panels and sleeves. To make sure that the rows of the back panel will match with the rows of the front panel, start working from the bottom, all the way up.

Using your color of choice :

Step 1. Chain 76 (84, 92, 100, 108, 116). Hdc on the 3rd chain from the hook. Hdc on each of the next sts until you reach the end of the row.

Step 2 :

Ch 2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the end of the row.

Step 3 :

Repeat Step 2 until you reach your desired length for that color. Cut the yarn and fasten off.

Step 4 :

To start with your new color, create a slip knot with your new yarn color, sl st on the st where you ended.

Step 5 :

Ch2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the end of the row.

Step 6 :

Repeat Step 5 until you reach your desired length for that color. Ch1, cut the yarn and fasten off.

Design 2: Colorblock Pattern :

For this design, you are basically doing the same steps for Design 1 except you create 2 separate back panels and sew them together.

Using your color of choice :

Step 1. Chain 39 (43, 47, 51, 55, 59). Hdc on the 3rd chain from the hook. Hdc on each of the next sts until you reach the end of the row.

Step 2 :

Ch 2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the end of the row.

Step 3 :

Repeat Step 2 until you reach your desired length for that color. Cut the yarn and fasten off.

Step 4 :

To start with your new color, create a slip knot with your new yarn color, sl st on the st where you ended.

Step 5 :

Ch2. Flip your work then hdc on the same st. Hdc on each of the next sts until you reach the end of the row.

Step 6 :

Repeat Step 5 until you reach your desired length for that color. Ch1, cut the yarn and fasten off.

Info :

Once you have created the two halves of your back panel, you have to connect them using the mattress stitch (see Doing the Mattress Stitch section).

— Doing the Mattress Stitch :

Info :

The mattress stitch is like tying your shoelaces, you work from side to side, inserting the laces from the bottom going up. Align the rows that you want to connect. Select the yarn color that you want to use. Work facing the correct side of the panels (correct side = outside).

Step 1 :

Cut a yarn with a length equal to 3x the length of your back panel.

Step 2 :

Using your tapestry needle, insert the yarn through the first stitch on the right panel from the bottom going up. Leave enough end (1-2 inches) for weaving.

Step 3 :

Then Insert the yarn through the first stitch on the left panel from the bottom going up.

Step 4 :

To secure your first stitch, insert the yarn once more through the first stitch on the right panel from the bottom going up. Then to the first stitch on the left from the bottom going up. You can make a single knot to make sure that the ends are secured.

Info :

From this point forward, work on the outermost post of each row (for rows where the outermost stitch is the ch2, work on the ch2). When inserting the needle, remember to always get at least 2 loops from the outermost post to make sure that the connection will be sturdy and secure.

Step 5 :

Insert the needle to the outermost post of the opposite panel, from the bottom going up, do the same to the other panel. Do this until you reach the post on the last row. Make sure that the rows match while you are stitching them together.

Step 6 :

To end the mattress stitch, you will basically do the same steps as when you started. Insert the yarn through the first stitch on the right from the bottom going up. Insert the yarn through the first stitch on the left from the bottom going up. Repeat again from * to secure your last stitch. Make a single knot then fasten off.

— Attaching the Panels and Sleeves :

Attaching the front and back panels together :

You will start by attaching the top portion of the front panel to the top portion of the back panel through the mattress stitch. Make sure that the rows match. Work facing the correct side of the panels (correct side means the side that should be facing outside).

Step 1 :

Start sewing from the outer edge going to the middle part of the cardigan by doing steps 1-3 under the "Doing the Mattress Stitch" section (page 16).

Step 2 :

For the next stitches, continue stitching from side to side, inserting from the bottom going up, until you reach the last stitch in your front panel.

Step 3 :

Make a single knot then fasten off. Do the same for the other side. You have now created the shoulder part of your cardigan.

Attaching the sleeve to the body :

For this part, you will use mattress stitch to attach the sleeves to the front and back panel then down to attach the sides of the cardigan. Work facing the correct side (correct side means the side that should be facing outside). Note: if you are more comfortable using sc or any other stitch when connecting panels together, you may also use those.

Step 1 :

Fold your sleeves in such a way that the seam will be positioned at the bottom (underarm area).

Step 2 :

Using your stitch markers, mark the topmost portion of the sleeves, then mark the rows in your front and back panel where you want to attach the sleeves. Make sure that the position in the front is similar to the position in the back panel. e.g. If you put the stitch marker on the 20th row of the front panel, make sure to also put the stitch marker on the 20th row of the back panel.

Step 3 :

Attach the sleeves to the front panel first by doing the mattress stitch. You will work from the underarm area all the way up to the shoulders. Since you left a long tail for the sleeves, you will start the mattress stitch by inserting the needle to the outermost post of your marked row in the front panel. Continue doing the mattress stitch all the way up. Take note of the topmost stitch of the sleeve where you placed the stitch marker. This stitch should be connected to the topmost portion of the cardigan.

Info :

Tip: When attaching the sleeve, 1 post in the panel is not necessarily equal to 1 stitch in the sleeve. Sometimes you have to make 2 mattress stitches in a single post in the front panel to match the stitches in the sleeves.

Assembly Instructions

  • Attach the top of each front panel to the corresponding top of the back panel using the mattress stitch; start at the outer edge and work toward the middle ensuring the rows match before knotting and fastening off.
  • Fold each sleeve so the seam is at the underarm, mark the topmost sleeve point and matching rows on front and back panels, then mattress stitch each sleeve into the armhole from underarm to shoulder.
  • Sew the side seams of the body from hem to cuff using mattress stitch or your preferred joining method, checking alignment frequently for an even finish.
  • Weave in all ends and secure tails left for attaching panels, then add cuff and bottom ribbing if required and sew on buttons to the front ribbing where desired.
  • When attaching colorblock back halves, align rows precisely and use mattress stitch to connect the two halves so the join is almost invisible; secure with a knot and weave in the tail.

Important Notes

  • 💡Use stitch markers to mark decreases, V-shape rows, and the topmost points of sleeves to ensure symmetry when joining panels.
  • 💡Keep the same tension and hook size throughout to maintain consistent panel widths and matching row counts across front and back.
  • 💡Leave long tails where instructed (3x or 4x lengths) to make mattress stitching and assembly easier without running out of yarn during seaming.
  • 💡Plan your color changes ahead so horizontal rows and colorblocks on the back will match the front panels and sleeve rows when assembling.

This colorblock oversized cardigan pattern gives you the freedom to create bold, wearable art with simple stitches and clear construction. Personalize the color layout, try horizontal stripes or asymmetric colorblocks, and make it truly yours. Whether you're gifting it or keeping it, this cardigan brings joy and a cozy, handmade touch to any outfit. 🧶✨

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FAQs

What size will the finished cardigan be?

Sizes are adjustable; follow the chain counts for XS to XXL and match front/back row counts. Finished dimensions depend on yarn and tension; refer to the measurement table in the pattern.

Can I use different yarn weights for this pattern?

Yes, but changing yarn weight will affect final size and drape; use an appropriate hook and adjust your chain counts and row numbers to match the gauge.

Do I need prior crochet experience for this pattern?

This pattern is beginner-friendly and uses basic stitches (hdc, dc, BLO), but familiarity with stitch counts, changing colors, and mattress stitch is helpful.

How long does this project typically take to complete?

Most crocheters finish this project in 12-15 hours depending on size, color changes, and assembly complexity; plan it as a multi-day project.

How do I join the two back panels for a colorblock design?

Use the mattress stitch: align rows, start from the bottom, insert the yarn through the first stitch on right then left, and work upwards matching the outermost posts until finished.