Crochet BlanketsIntermediate

Chunky Corner-to-Corner (C2C) Throw Blanket Pattern

A weekend-friendly chunky C2C throw with clear diagonal-row instructions, yarn requirements, and the increase/decrease turning rules that trip up first-time C2C crocheters.

15 min read Updated July 23, 2026 By Mira Holloway
A chunky corner-to-corner crochet throw in cream, sage and beige folded on a wooden bench with a basket of yarn
Materials
  • Super-bulky (#6) chenille or wool-blend yarn — approximately 1,800 yards total across 3 colors
  • 9.0 mm (US M/13) crochet hook
  • Tapestry needle for weaving in ends
  • Scissors and a tape measure
Crochet abbreviations
  • chchain
  • sl stslip stitch
  • dcdouble crochet
  • spspace
  • prevprevious

Corner-to-corner (C2C) is the fastest way to build a chunky throw. You start with one small tile in a corner, add one tile per diagonal row until it's the size you want, then decrease back down to the opposite corner. It looks like colorwork magic in finished photos — the reality is 'chain 6, double crochet three times, repeat.'

This pattern makes a 40 × 50 inch throw in super-bulky yarn on a big hook, which works up shockingly fast. Most stitchers finish in two long weekend sessions.

About the tile
One C2C tile = ch 3, then 3 dc worked into a chain-3 space (or into your starting chain on row 1). Every row after the first is 'ch 6, turn, 3 dc in the 4th chain from hook' for the new corner tile, then join into previous tiles with 'sl st, ch 3, 3 dc' for each existing tile.

Row 1 — the first tile

Chain 6. Double crochet in the 4th chain from the hook, then in each of the next 2 chains (3 dc total). Turn. That's your first tile.

Increase rows (rows 2 to 40)

At the start of every increase row: chain 6, turn. Work 3 dc in the 4th chain from hook (this is the new corner tile). Then slip-stitch into the ch-3 space of the previous row's next tile, chain 3, and work 3 dc in the same space — that joins the new row into the existing fabric.

Repeat 'sl st, ch 3, 3 dc in next ch-3 sp' across the row until every previous tile has a new tile above it. Turn.

Continue until you have 40 tiles across (the widest point of the diamond).

Decrease rows (rows 41 to 79)

At the start of every decrease row: slip-stitch across the top of the first tile to reach the ch-3 space, chain 3, and work 2 dc in that space (that's your new first tile of the row). Continue working 'sl st, ch 3, 3 dc' across, but stop one tile short of the end. Turn.

You'll finish at the corner opposite your starting corner. Fasten off, weave in ends.

Changing colors

Change color at the end of the last dc of a row — yarn over with the new color for the final pull-through. Blocks of color follow the diagonal; solid blocks of tile-count (e.g. 'work 8 rows in sage, 8 in cream') give a soft striped effect.

Border and finishing

Attach yarn to any corner. Single crochet evenly around the entire blanket, working 3 sc into each of the four corners. Join with a slip stitch, fasten off. This one round is the difference between 'homemade' and 'finished.'

Project tips from the studio

  • C2C looks intimidating and is genuinely simple: every 'tile' is 3 dc worked into a chain-3 space. Once that clicks, the whole pattern is just increase, increase, decrease, decrease.
  • Count tiles per row, not stitches. Row 1 has 1 tile, row 2 has 2, row 3 has 3 — the count IS the row number until you start decreasing.
  • Block the finished blanket lightly. Chunky yarn doesn't need aggressive blocking, but a light steam evens out the diagonal edges beautifully.

Troubleshooting

My blanket is turning into a diamond instead of a rectangle.
You're only increasing. C2C starts as a diamond — once you hit your target size, switch to decreasing on ONE side to square it off.
The edges look jagged.
Normal for C2C. A single round of single crochet border around the finished blanket smooths every edge in about 30 minutes.
I lost my place mid-row.
Count the tiles in the row you're working on. The row number equals the tile count during the increase phase, so if you have 12 tiles you're on row 12. Simple recovery.

Frequently asked questions

What does C2C mean in crochet?+

C2C stands for corner-to-corner. You start in one corner with a single tile and build diagonal rows outward until the piece is the size you want, then decrease back to the opposite corner.

How long does a C2C blanket take?+

A chunky throw like this one usually takes 15–20 hours across a couple of weekends. Worsted-weight versions take considerably longer — 40+ hours for a similar size.

Can beginners make a C2C blanket?+

Yes, if you're comfortable with double crochet and chains. The pattern is repetitive: three double crochets in a chain-three space, over and over. The only new concept is the row-turning technique.

What yarn is best for a C2C throw?+

Super-bulky chenille or wool-blend for cozy throws that work up fast. Worsted-weight cotton gives crisp stitch definition if you want a more structured, drapey blanket.

How do I make a C2C blanket bigger or smaller?+

Change the number of tiles at the widest point. Every 40 tiles at this gauge equals roughly 40 inches wide, so target the tile count that matches your desired size and adjust yarn quantity by 20% up or down.

Sources & content review
This article was written by our editorial team and reviewed against our editorial policy. All techniques are tested in our studio, and craft-terminology definitions cross-checked against the Craft Yarn Council standard yarn weight system and CGOA glossary.