I believe it's 10 ply. I needed to know it too and looked it up on the net.Hope it's helpful.
Most 4-ply yarns are medium-weight, which may carry the name worsted weight yarn. Ply is a complicated thing. Thickness and ply of yarn is different depending on where the yarn is manufactured. In the U.S. worsted weight is generally 4 ply. The number of plies is not always an indication of weight, however. It is just tells you how many strands are used in that type of yarn.
In the UK, worsted weight yarn corresponds to 10ply (i.e. heavy DK or light aran yarn)
I don't know how many plies it has, but it knits up worsted weight.
See http://www.YarnStandards.com for how the categories of yarn weights compare in terms of relative gauges and needle sizes used to achieve those gauges. Worsted weight (Category 4 - Medium) is the yarn commonly used to knit sweaters in the U.S. U.K. knitters often use a slightly thinner yarn called "DK" (double knitting), which falls into Category 3 - Light. Worsted weight yarn is typically knit at 20 sts/4 in or 10 cm on US 7/4.5mm needles, whereas DK weight yarn is typically knit at 22 sts/4 inches or 10 cm on US 5/3.75mm needles. Some countries still use the old 2-ply, 4-ply, 6-ply, 8-ply classification to describe yarns, where 4-ply is fingering weight, 6-ply is sport weight, 8-ply is DK, and 10-ply is worsted weight. One problem with that system of classification is that it assumes a standard ply weight. There are many yarns these days (particularly in the Bulky and Super Bulky categories 5 and 6) that are single-ply yarns which knit at various gauges on various needle sizes.
American WW (Wool Weight) typically refers to a yarn that is classified as a worsted weight, which is often a medium-weight yarn. It generally comes in various ply options, with the most common being 2-ply or 3-ply, depending on the specific brand or manufacturer. This ply structure contributes to the yarn's durability and texture, making it suitable for various knitting and crocheting projects. Always check the specific yarn label for precise details on ply and weight.
Double knitting is also called sport weight yarn and is not as thick as worsted weight. 2 ply wool is thinner than double knitting and is usually used for making socks.
The difference between 8-ply and 4-ply wool, can depend on the weight of the plies. Some 3-ply yarns have heavy weight (fatter) plies, which knit up heavy worsted, where 2-ply lace weight yarn plies are much lighter (skinnier) plies that knit up very light/lacy/small.If I were to guess, the 8-ply in question, may have smaller plies than the 4-ply. I think if you double the 4-ply, that would be too much. You should try a gauge swatch using the 4-ply singularly, and maybe adust the needle size.
Sport weight yarns are usually thinner and lighter weight than worsted weight yarns
It should be 418 yards long.
Patons Shadow Tweed wool is a medium weight yarn that is classified as a 4-ply or worsted weight yarn. This yarn typically has a soft texture and is suitable for a variety of knitting and crochet projects, including garments and accessories. The tweed effect adds visual interest, making it a popular choice for textured patterns.
Worsted weight yarn would go great with plastic projects.
Patons Patex Boucle is a worsted weight yarn, typically classified as a 4-ply yarn. Its boucle texture creates a unique, textured fabric, making it popular for various knitting and crochet projects. Always check the specific product details for any variations, as yarn specifications can sometimes differ slightly.