Choosing 3-4 Ply Yarn (Sock / Fingering Weight)
Frequently asked questions
What is the difference between 3 ply and 4 ply?
Very little in practice: 3 ply is slightly finer. Both are fingering weight, use 2.75mm to 3.75mm needles and are often interchangeable if your tension matches.
Is 4 ply the same as fingering weight?
Yes. 4 ply is the Australian and UK name for fingering weight, and sock yarn is usually 4 ply.
What needles for 4 ply?
3.25mm is the usual size for garments, giving about 28 stitches to 10cm. Socks are knitted more tightly, on 2.5mm to 3mm.
How much 4 ply for a baby cardigan?
Usually 150 to 200g, so three or four 50g balls. A pair of adult socks takes about 100g.
Can I knit a 4 ply pattern with 8 ply yarn?
No. 8 ply is twice the thickness and the garment would come out far larger. Match the ply the pattern names.
Is 4 ply good for a beginner?
It is finer and slower than 8 ply, so most people start with 8 ply. A simple 4 ply project such as plain socks or a garter stitch baby blanket is fine once the basics feel comfortable.
What crochet hook for 4 ply?
3mm to 3.5mm for garments and shawls, and 2.5mm for amigurumi where you want a tight fabric.
Can I use 4 ply for a baby blanket?
Yes, and it makes a light, soft blanket, but it takes longer than 8 ply. A cot blanket needs around 400 to 500g.