Fineness of the Knotting

(Posted on 28/09/13)

Fineness of the Knotting

This refers to the number of knots that have been tide per sq inch of pile.  The higher the number of knots, the finer the weave.  There are no hard and fast rules determining the exact knot-count required to justify a rug being referred to as 'fine' or 'finely knotted', but anything over 150 knots per sq inch can be considered medium grade (reasonably finely knotted) and anything over 250 or 300 would generally be acknowledged as top grade (fine).  The fineness of the knotting is not an infallible indicator of quality.  If very thick yarns are used, as they are in Chinese and other good quality items, the number of knots that per sq inch is understandably less than if thinner yarns are employed.  Equally, regularity and evenness of knotting are crucial to the structural and composition integrity of a rug: the knot-count should be the same throughout the entire rug rows straight and uniformly spaced.  However, a high knot-count is necessary to produce extremely intricate designs and the more intricate the design, the more knots needed to ensure its success.  This is particularly true when articulating curved or flowing forms.  To determine the fineness of the knotting, count the number of individual knots that occupy a linear inch on both the horizontal and vertical axes of any part of the rug, and then multiply the two numbers together.  Measurements may be calculated in sq feet, centimeters or millimeters, but the sq inch and sq meter are by far the most commonly used.