Carpet Knots
These weaves were constructed with two sets of threads by crossing them at 90-degree angles. In these weaves the perpendicular threads are called the warp and the horizontal threads the weft. This technique was first used for making cloth, but at the same time it set the foundation for weaving kilims. All of these productions are referred to as "flat weaves" Wooden or metal combs were used to push the weft down, so these weaves are called "combed weaves".

Persian knots matches asymmetrically around of pair located beside with each other strings of a basis; the pile yarn twists one string of a basis entirely, and the second - only half. Other names of knots of this type are: farsibaff, senneh knot named after the Persian city of Senneh (now Sanandadje in the Iranian Kurdistan) and asymmetric knot.

Turkish knots symmetrically match around of pair a line of the located strings of a basis; both strings of a basis are completely twisted with a pile yarn. Other names of knots of such type: turkbaff, gyordes knot named after Asia Minor city of Gyordes and symmetric knot. Despite of the specified names, both types of knots have no precise national binding as both that, and another are used both in Turkish oriental rugs, and in Persian rugs. Moreover, sometimes knots both forms can be met in one carpet.