When we talk about area rugs, whether new reproduction rugs or the antique originals on which they are based, one of the most common ways of categorizing them is by their level of fineness.

Specifically, the fineness we refer to is the fineness of weave density, with the finest rugs being those with the tightest weave density. In the West, we often express this level of weave density in terms of KPSI, or knots per square inch. In the East, the more traditional expression is in terms of RAJ, or knots per 7 centimeters. The higher the KPSI or RAJ, the finer the rug.

The Eastern Carpet Long Beloved By the West

Within the wide world of oriental rugs, one could rightly say that beauty is in the eye of the beholder, as each person has their own criteria as to what makes one type of rug more beautiful or desirable than another.

Is a rug’s beauty defined by the intricacy of its design, with the most intricate designs being the best? By the fineness of its weave, with the finest weave being the best? By the richness of its color palette, with the brightest and most colorful being the best?