Graphghan Techniques Compared: C2C vs Single Crochet vs Tapestry

If you have a graph and you're deciding how to work it: pick single crochet for fine detail and lettering, C2C if you want the blanket finished in a reasonable number of evenings, and tapestry if you want a dense fabric with a clean right side and don't mind carrying yarn. Everything below is why.

All of it is US terms.

A graphghan is not a technique

A graphghan is a blanket worked from a colored graph. That is the whole definition — it names the kind of project, not the stitch. The graph is a grid, each square carries a color, and each square becomes one unit of fabric.

Which unit is the entire question. In C2C, one square is a block of three double crochet. In a single crochet graphghan, one square is one single crochet stitch. Those are the same picture and very different blankets: different size, different weight, different drape, different number of hours.

This is also why "C2C" and "graphghan" are not interchangeable, even though people use them that way. If someone hands you a graph and says it's a graphghan, you still have to ask which technique they had in mind before you can work out how big it will be or how much yarn to buy.

C2C (corner to corner)

Worked diagonally from one corner to the opposite one. Each square of the graph is a block: chain 3, then 3 double crochet. You start with a single block, add a block at each end of every row until you reach the short side of the graph, and then decrease back down to a single block in the far corner.

The fabric is a textured diagonal grid with a bit of give to it — a classic afghan hand. It's noticeably lofty compared with single crochet.

Speed is the headline. One block covers roughly the area of nine single crochet stitches, so a design that would be a month of single crochet is a couple of weeks of C2C. Row count works out at W + H − 1 for a graph W wide and H tall, which sounds like a lot until you realise each row is short at both ends.

The catch: blocks are chunky, so fine detail turns to mush. Small text, thin outlines and single-square highlights don't survive being three double crochet tall. Design for it — bigger shapes, fewer colors per row.

Ends: one per color change per row, and a busy graph has a lot of them. Carrying yarn along the row helps on short jumps; bobbins are better when a color reappears far away.

The mechanics of the shaping — where the increases stop and the decreases start, and what your hands do at each corner — are in C2C increases and decreases.

Single crochet

Worked in straight rows, back and forth, one single crochet per graph square, changing color as the graph says. Rows alternate direction, so you read the graph right to left on one row and left to right on the next.

The fabric is dense, flat and firm — the closest crochet gets to a woven picture. It's also the least stretchy of the options, which is good for wall hangings and less good for a blanket you want to drape.

Detail is the reason to choose it. One stitch per square means the design comes out exactly as drawn, which makes it the only sensible choice for lettering, faces, or anything where a single square carries meaning.

Speed is the price. Single crochet stitches are small and there are a great many of them; a full-size single crochet graphghan is a serious project.

Ends and carrying: the standard approach is to carry unused colors inside the stitches as you go, which keeps the back tidy but shows a little on the front and stiffens the fabric further. The alternative is bobbins and a lot of weaving in.

Tapestry crochet

Also straight rows of single crochet, but with the unused colors carried inside the stitches throughout, and often worked in the round with the right side always facing.

The fabric is the densest of everything here — carrying yarn through every stitch effectively doubles the yarn in the fabric. Wonderful for baskets, bags and anything that should hold its shape; heavy for a big blanket.

Detail is as good as single crochet, since it's the same one-stitch-per-square grid.

The catch: tension. Carried yarn wants to pull the fabric in, and keeping it even across a wide piece takes practice. Worked flat in rows the carried strands also show a little on the wrong side, which is why so much tapestry work is done in the round.

Block stitch and mini C2C

Two variations worth knowing because they come up constantly in graphghan conversations.

Block stitch graphghans use clusters of double crochet worked in straight rows — fast like C2C, but built horizontally rather than diagonally. The fabric is chunky and openwork-ish, and the same detail limitation applies.

Mini C2C is C2C with half double crochet blocks instead of double crochet. It's a size variant, not a different craft: smaller blocks, finer detail, more rows, more time. If someone says a design is "too chunky for C2C", mini C2C is what they'll suggest next.

Mosaic and filet

Both read a grid, and both are worth a mention so you don't reach for the wrong one.

Mosaic crochet builds a two-color pattern from stitches that reach down into earlier rows. It's graph-driven, but the graph is a specific mosaic chart with its own rules, not a general picture — you can't feed it an arbitrary photo grid and get a working piece.

Filet crochet is a mesh grid of filled and open squares — the picture is made from the holes. Conventionally its charts are drawn as filled and empty cells rather than colored ones, so a filet crocheter reads a different-looking chart even though the underlying grid is the same idea.

Side by side

Sizes follow directly from the first column. A 60 × 80 graph in worsted is roughly a 60 × 80 inch blanket in C2C — blocks run about an inch on a 5 mm (H-8) hook — and roughly a 24 × 28 inch baby blanket in single crochet. Same graph. Always swatch: gauge in crochet varies between makers more than between yarns.

Which to pick

Pick C2C if the design has bold shapes, if it's a full-size blanket, or if you want it done. It's the default for photo-style graphghans for a reason.

Pick single crochet if there's text, a face, or any element that lives or dies on one square. Then check the finished size before you commit — one stitch per square makes designs much smaller than people expect, and scaling up means redrawing the graph bigger, not working looser.

Pick tapestry if the piece should hold its shape, or if you're working in the round.

Pick mini C2C if you tried C2C and the detail was not there. Pick block stitch if you want C2C speed in straight rows.

And if you're torn between C2C and single crochet on a photo-based design: work a small swatch of each from the same corner of the graph. Twenty minutes of swatching beats forty hours of regret.

One graph, many blankets

The useful consequence of all this is that the graph is portable. Draw it once and you can work it in any of these techniques — the grid does not care.

That is how Stitchmate's C2C crochet pattern maker is built. Draw a graph block by block, or convert a photo to your yarn palette and edit the result, and you get a printable graph with per-color counts that works for any grid-based technique on this page.

One thing worth being straight about: the written row-by-row instructions are C2C only. Straight-row techniques — single crochet graphghans, tapestry — need their own row builder and we haven't shipped it, so for those the graph is the deliverable and you count off the grid the way you always have. If you're planning an SC graphghan and what you want is written rows, that isn't something we do today. Better you know now than at row 40.

If C2C is your pick, how to read a C2C graph covers the diagonal and the row count, and C2C borders and edging handles the stepped edge at the end. For yarn weight and hook size standards, the Craft Yarn Council is the reference everyone in the craft is actually using, and Ravelry is where you'll find real projects worked in each of these techniques with notes from the people who made them.