Quality Scale

The Persian knot

The Persian knot is formed by wrapping the yarn around one warp strand, then passed under the adjoining warp strand and then brought back to the surface. This type of knot, also known as the Senneh knot, produces a finer weave.

Knots Per Square Inch (kpsi)

175-200 kpsi (Nomadic)

200-300 kpsi (Average)

300-400 kpsi (Above Average)

400-500 kpsi (Very Fine)

500+ kpsi (Exceptionally Fine)

The Persian knot

The Turkish knot is formed by wrapping yarn around two adjoining warp strands and bringing it to the surface in the middle of the two strands. Turkish and Kurdish tribes of Turkey, Iran and the Caucuses use this type of knot, also known as the Ghiordes knot.

Tabriz Knots (lines per 7.5cm)

30-40 lines (Average)

40-50 lines (Above Average)

50-60 lines (Very Fine)

60+ lines (Exceptionally Fine)