A few centuries ago many beautiful carpets were woven in Sanandaj and Bijar. Unfortunately, the quality of the more recent carpets in Kordestan is not as good as those woven previously. The designs of Sanandaj carpets are mostly monotonous and in these last two centuries the designers and weavers have taken many steps to improve or re touch the former designs. Floral designs are strongly stylised and differ greatly depending on the tribal style and tradition. The design that is most preferred by the weavers is the "Botteh". This motif is repeated in a parallel line several times in row on the background of the carpet.
Anyhow this design is different from those of Ghom, Arak, Kerman and Birjand.
One other design that is woven by the able craftsmen is the Harati design, also known as "Mfihi Zanburi" (fish-bee). Although the Persian knot is known as "Senneh", the weavers of the area prefer the Turkish knot instead of using the knot that bears the name of their own town. Carpets woven in Sanandaj are very thin, short-piled and have one weft after each row of knots.
In Sanandaj, they often weave "Zar-o-nim" and "Sajjadeh"sizes. The dyers are very precise in their profession. They usually use blue, dark blue, brilliant red, yellow, brown and light pistachio colours. Synthetic dyes are found rather infrequently. The wool used to weave the carpets is hand-spun and very thin.