Rugs from the city of Bijar in Kurdistan province, northwestern Iran, and the villages around it; the name covers both fine and coarse double-wefted pieces, woven by Kurdish tribes and, in workshops, Afshar weavers. Nicknamed the “iron rugs” of Iran, they are among the heaviest rugs for their size: double wefts, symmetrical (Turkish) knots, and rows beaten down hard, often while the wool is kept wet, give a thick, dense pile. Designs run from floral, Herati, and medallion to geometric, drawing on Isfahan and Kashan as well as Russian, Caucasian, and European sources (a French-style rose bouquet among them), in jewel tones of rust, red, beige, and navy. Bijars are often small rugs or runners, large sizes are rare, and the flat-woven ends and fringes are typically braided.
A construction in which two weft threads, rather than one, are run through the warp between successive rows of knots. The doubled weft covers the foundation, so on the back of a finely and tightly woven rug only knots and weft show, without the white flecks of warp that give away a single-weft rug, and the rug is thicker, denser and heavier. Bijar and Heriz are typical double-wefted types, as are finely woven Persian rugs in general.