Yarn count (Ne) explained: what the number means for cotton
Ne 20, Ne 40/2, Ne 80: yarn counts appear on most cotton spec sheets. Here is what the number measures and how it shapes the cloth woven from it.
Most cotton fabric specifications include a yarn count, often written as Ne 30, 40/1 or 2/60. It is one of the most useful numbers on the sheet, because it tells you how fine or coarse the yarn is before you ever touch the cloth. It is also easy to misread, since the cotton system works in the opposite direction to most people's instinct.
What Ne actually measures
Ne is the English cotton count. It is an indirect system: it expresses how much length of yarn there is in a fixed weight. Specifically, Ne is the number of hanks of 840 yards needed to weigh one pound. A yarn of Ne 1 gives one 840 yard hank per pound; a yarn of Ne 40 gives forty hanks from the same pound of cotton.
Because more length in the same weight means a thinner strand, a higher Ne is a finer yarn. Ne 10 is thick and rope-like by shirting standards; Ne 80 is fine enough for a smooth, lightweight dress shirt.
Other count systems you will meet
Mills and buyers do not all use Ne, so it helps to recognise the others:
- Nm (metric count): kilometres of yarn per kilogram. Also indirect, so higher is finer. Nm is roughly 1.69 times the Ne figure.
- Tex: grams per 1,000 metres. A direct system, so a higher number is a heavier, thicker yarn. To convert, divide 590.5 by the Ne figure: Ne 30 is about 19.7 tex.
- Denier: grams per 9,000 metres, used mainly for filament yarns such as polyester and lyocell filament, rarely for spun cotton.
| Ne | Approx. Nm | Approx. tex | Where you might find it |
|---|---|---|---|
| 10 | 17 | 59 | Canvas, heavy drill |
| 20 | 34 | 30 | Drill, panama, workwear |
| 40 | 68 | 15 | Poplin, everyday shirting |
| 80 | 135 | 7.4 | Fine shirting |
Singles and plied yarns
A single yarn is one twisted strand. A plied yarn is two or more singles twisted together. In the cotton system it is written as count over number of plies: Ne 20/2 means two strands of Ne 20 twisted together. The resulting yarn behaves roughly like a Ne 10 in thickness, but it is stronger, more even and less hairy than a single Ne 10 would be.
Watch the order. Some mills and the worsted trade put the ply count first (2/40), so always confirm which convention a supplier is using. In shirting, "two-ply 100s" means Ne 100/2, a very fine and smooth yarn.
Plying is why a heavy canvas can be both strong and regular. Our cotton canvas 500 gsm is woven from double-ply yarns in both warp and weft, which gives it body without the unevenness of a very coarse single yarn.
How count shapes the cloth
Yarn count works together with thread density and weave to set the character of a fabric:
- Weight: at the same construction, coarser yarns make a heavier cloth. A fine yarn can still give a substantial fabric if many more threads are packed in.
- Handle and surface: finer yarns give a smoother, softer, more lustrous surface. Coarse yarns give texture and a drier hand.
- Strength and abrasion: thicker yarns resist wear better, which is why aprons, bags and workwear use coarser counts than shirts.
- Absorbency and drying: in towelling and tea towels, a more open, slightly coarser yarn holds water well; very fine, tightly packed yarns dry fast but absorb less.
- Cost: fine counts need longer, better fibre and more spinning time, so they cost more per kilo.
Reading count on a spec sheet
A full construction is often written as warp count × weft count, then ends × picks. For example, "40 × 40 / 133 × 72" describes Ne 40 yarn in both directions with 133 ends and 72 picks per inch, a classic poplin build. The warp and weft counts are not always the same: a mill might use a stronger plied yarn in the warp, which carries the loom tension, and a single yarn in the weft.
Count is a nominal figure. Spun yarn varies slightly along its length, and tolerances of a few percent are normal. When a fabric has to match an existing product closely, weight, construction and a physical sample are more reliable guides than count alone.
Asking for the right yarn
If you are developing a fabric, describe the result you need (weight, handle, strength, how it will be used) and let the mill suggest counts and construction that achieve it. For our standard qualities, the swatch card and product pages give the weight and composition, and our shirting fabrics show how finer yarns translate into lighter weights. For custom development, get in touch with the target spec or a reference sample.
