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All you need to know about the knots in hand-knotted rugs, and how to count them.
Knots counts
The knot count of a rug indicates the density of knots in the pile. This count is a gauge of the quality of a rug. A higher knot count usually indicates a higher quality rug. However, there are many other factors such as design, origin, wool type, colour and finishing that also come into play. Even some expensive rugs can have a low knot count.

Knots are counted from the back of the rug where each knot appears as a small square. Knot counts are commonly designated in a few different ways: 1) knots per square inch, 2) as line count (ie., 70 line), 3) as a pair of numbers (ie., nine sixty or 9/60). There are also many variations between countries.

1) Knots per sq. in.
Simply, the number of knots in a square inch of carpet. On the back of the rug, mark out a one inch square, and count the vertical and horizontal number of knots and multiply them together. Commonly used for Persian rugs. 80 knots per square inch is average quality, while 300 plus knots is fine.

The above example is 17 x19 knots which is 323 knot per sqaure inch. A very fine rug indeed!

2) Line count (160 line)
In China- the number of knots in a row per foot of width of carpet. 70 line is average, while 200 line is fine.
In Iran- the number of knots in a row per 7 cm of width (the length of a Persian cigarette). 25 line is average, 40 line and above is fine.

The above example is a 45 line Persian rug.

3) Number pairs (5/40)
In India- It is a combination of knots per 9/10 ths of an inch of width of the rug and knots per 4 1/2 inches of length.
In Pakistan- it is a combination of knots per inch of width and knots per in. of length of the rug.

Knot types
The two most typical knots used in Oriental carpets are called Turkish (Ghiordes or symmetrical knot), and Persian (Senneh or asymmetrical knot). Some regions are historically noted for the use of a particular knot

Turkish Persian

For the Turkish knot, the yarn passes over the two warp yarns, and emerges between them to form the pile .It has a symmetrical structure.

For the Persian knot, the yarn passes behind one warp yarn, and the two ends emerge on either side of a warp yarn.It has an asymmetrical structure.

The less common Jufti forms of both knots are where the knots are tied around 4 warp threads instead of 2. The result is a less dense pile.


How many knots in a Rug?
In a 45 line Persian rug there are 265 knots/sqin. In an 8x11 there are over 3.3 million knots. Even a 4x6 has around 900,000 knots. A skilled weaver can tie about 800 knots per hour. During an 8 hour day, the weaver would tie 6,400 knots. For the 8x11 Persian rug, that's over 500 days of weaving and over two years to make the rug.



Alexanians carries a wide selection of quality oriental and area rugs from around the world. Online or in our Ontario, Canada stores.
Shop by area rug type: hand-knotted area rugs, machine-made area rugs, tufted area rugs, Braided, Sisal, & Shag area Rugs, Outdoor and Patio Area Rugs.
And we service what we sell with carpet and area rug cleaning.

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