Three-ply yarns can also be spun using the basic plying method: joining three singles together and spinning in the opposite direction. Three-plies are even stronger than two, and the resulting yarn feels plump and round.
You will hear fingering and sock weight yarns referred to as 3 and 4-ply yarns. Which is what they usually are but you will also find many other yarns in heavier weights which are created with 3 or four plies. This is due to the mixing of international terminology between weight and spinning vocabularies, just remember that plies are independent of the thickness of the yarn because a ply can be any thickness.
Check out my search in Ravelry for 3-ply yarns and note they come in fingering, Aran and bulky. Further down in the search you'll see worsted sport and DK.
|Available 3-ply yarns|
|Available 4-ply yarns|
The difference between 3 and 4 ply yarns are that 4 ply is even stronger but the plies don't nest together as neatly as 3-plies do. I've been told that some spinners can see the fourth ply in stocking stitch. I can't unfortunately, so I suspect I'll have to keep practicing.
Next time I'll cover crepe and cabled yarns.
Part 1 is here.
Part 2 is here.