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<strong>Threads & Cords</strong>Threads & Cords

How LinenThread Sizes are calculated.

No.1 yarn is 1 pound of flax spun to a length of 300 yards.
No.2 yarn is 1 pound of flax spun to a length of 600 yards.
And thus;
No.18 yarn is 1 pound of flax spun to a length of 5,400 yards.

Taking for example a 18/3 thread:

The "3" refers to the number of yarns that have been plied together.
The "18" indicates that it takes 5,400 yards of such yarn to weigh a pound.

It can be seen why bigger numbers mean smaller thread -- the thinner the yarns, the more of them it takes to make a pound.

In conclusion.
A 35/3 thread is made of three yarns, each made from 1 pound of flax spun out to 10,500 yards and then twisted together.

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