Transitioning from 3-ply to 4-ply

Hello, everyone. I’m currently crocheting a blanket in rounds. I made a mistake when ordering the yarn and crocheted the first section with 3-ply yarn, but now I’d like to continue with 4-ply yarn starting with the next pattern. Would that work? 

Hello.
I don’t think it’ll work. But it always depends on the pattern.
Maybe try crocheting a few stitches with the 4-ply yarn and see if you like how it looks.
Good luck, and best regards,
Michaela 

Hi Katharina,

I’ve had this problem before with 2-ply and 3-ply yarn.
But ultimately, it depends on your yarn. Some 3-ply yarns are pretty thick, and in that case, it probably won’t work.
Some 3-ply yarns are quite thin, so the difference isn’t very noticeable. It can be a tad thicker, but not by much.
As I said, it depends on the thickness of your yarn and the material. Pure cotton 3-ply is much thicker.
As Michaela already suggested, just do a gauge swatch. Good luck!