Every hand-knotted rug in the world is built from one of two knots. The choice tells you where the rug was likely made, what kind of designs it can render best, and how durable the pile will be. Here's the whole story in about five minutes.

01 — The Persian KnotAlso known as the Senneh, or asymmetric knot.

The Persian knot is tied around one warp thread and looped under the next. The yarn wraps completely around one warp, then passes behind the neighboring warp, with both ends emerging together to form the pile. The knot is asymmetric — one side wraps completely, the other only halfway.

What this means in practice: the Persian knot allows finer, more detailed patterns. Because the knot is asymmetric, it can render subtle curves and floral details more crisply. It's also faster to tie, which historically made it useful for high-KPSI production where speed mattered.

Where it's used: most of Iran (Persia), especially the workshop-production cities — Tabriz, Kashan, Isfahan, Nain, Qum, Kerman. Also India, Pakistan, and China, which adopted the Persian knot for their commercial hand-knotted production. This is why it's called the "Persian" knot even though it's now the most common knot globally.

02 — The Turkish KnotAlso known as the Ghiordes, or symmetric knot.

The Turkish knot is tied around two adjacent warp threads simultaneously. The yarn wraps around both warps in a symmetric loop, with both ends emerging together between the two warps to form the pile.

What this means in practice: the Turkish knot is stronger and more durable than the Persian knot. Because it grips two warps at once, the pile is more securely locked in and less likely to loosen over decades of wear. It's slightly slower to tie and doesn't render curvilinear detail as finely, but for bold geometric designs and long-lasting daily-use rugs, it's the more robust choice.

Where it's used: Turkey (Anatolia) — Hereke, Ushak, Konya, Kayseri — plus the Caucasus (Kazak, Shirvan, Kuba), Kurdish weaving regions in Iran (Bijar rugs are Turkish-knotted despite being Persian in origin), and much of Central Asian tribal production.

03 — The Rules of ThumbWhich regions use which knot.

• Persian knot territory: most of Iran except Bijar and Kurdish regions; India; Pakistan; China; Egypt. Curvilinear designs, floral medallions, fine detail work.
• Turkish knot territory: Turkey; the Caucasus; Bijar in Iran; Kurdish weaving regions everywhere; most Central Asian tribal (Turkmen, Yomud, some Baluchi). Geometric designs, bold medallions, high-durability construction.
• Both used regionally: some regions have overlap or use both traditions. A rug's origin tells you the likely knot; the knot doesn't definitively tell you the origin without other context.

04 — How to Tell Which KnotThe back-of-the-rug test.

Flip the rug over and look closely at the knot bumps on the back.

Turkish knot signature: each knot appears as two symmetric nodes side by side. Left and right nodes are identical size and shape. Every knot in the rug looks the same on the back.

Persian knot signature: each knot appears as one node on one side and a smaller connection on the other, or as offset nodes because the warps in Persian-knotted rugs are often on different planes. The result: knots look asymmetric on the back, with one side more visible than the other.

A note on counting: because Persian knots often show two nodes for one knot (when warps are on the same plane), it's easy to double-count them and think a Persian-knotted rug has more knots than it does. When counting KPSI on a rug you suspect uses Persian knots, count paired nodes as one knot. If you see many single nodes in a row, the rug has offset warps and each node counts as one knot.

05 — The Third Knot to KnowJufti — and why to avoid it.

06 — The Short AnswerIf you want one takeaway.

Neither knot is better. The Persian knot exists because Persian designs required fine detail; the Turkish knot exists because Turkish and Caucasian designs required bold geometrics and long durability. A fine Persian Tabriz is objectively "better" than a Turkish Kazak only if you want fine Persian design. If you want bold Kazak geometry, the Turkish knot is what makes it work.

What matters is that the knot matches the rug's design tradition and that the knots are real (not jufti). Beyond that, the knot type is a data point — useful for placing where a rug came from and how it was designed to perform, not a judgment of quality on its own.

— Arsh's Rugs