Hand-Knotted Wool Rug Inspection in India

How hand-knotted wool rugs are made in India

A weaver ties each knot by hand around a pair of cotton warp threads on a vertical loom, follows a coded design map, and beats down a row of weft after each line of knots. A large rug can take one or several weavers months. After it is cut from the loom, the rug goes through a chain of finishing steps, often at different workshops: clipping the pile, washing, drying in the sun, stretching on a frame to correct its shape, final shearing, binding the sides and finishing the fringe.

Many faults come from that finishing chain, not the loom: washing makes colours run, stretching forces a rug to a size it creeps back from, and low shearing exposes the knots.

The Carpet Export Promotion Council (CEPC) lists Bhadohi, Mirzapur, Jaipur, Agra, Gwalior, Panipat and Srinagar among India's producing centres. Bhadohi is a DGFT Town of Export Excellence for carpets and has the "Handmade Carpet of Bhadohi" geographical indication. Mirzapur was added as a Town of Export Excellence for handmade carpets and dari under the Foreign Trade Policy 2023. See also Jaipur and Panipat. IBEF puts India's carpet exports, all types, at US$1.54 billion in FY2024-25 (IBEF carpet page, updated October 2026).

What we check on hand-knotted wool rugs

Check	How it is checked	What fails
Knot density (KPSI)	Knots counted along one inch horizontally and one inch vertically on the back, at three or more places, and multiplied	Count below the agreed figure, or much lower in one part of the rug
Knot type	Back examined for Persian (Senneh) or Turkish (Ghiordes) knots and for jufti knots tied over four warps instead of two	Jufti knots where they were not agreed; they halve the density and wear faster
Size and squareness	Length and width at both ends and the middle; both diagonals compared	Outside the size tolerance, or a diagonal difference that shows a skewed rug
Lie-flat	Rug laid flat on a clean floor; edges and corners observed	Rippling, curled corners, a buckle in the middle
Abrash and colour	Rug viewed from both ends in daylight against the approved strike-off	Shade bands that were not agreed, blotches, or a colour far from the strike-off
Colour bleeding	Damp white cloth pressed and rubbed on deep reds, blues and black; fringe ends checked for colour halo	Dye transfers to the cloth or has already run into the fringe or a pale ground
Pile height and shearing	Pile gauge at several points; surface viewed at a low angle	Uneven or scalloped pile, low patches, knots showing through
Back faults	Back checked for missing knots, wrong-colour knots, loose weft and darned repairs	Visible design errors, repairs on the face, weak or loose areas
Binding and fringe	Side binding wraps and fringe knots checked along the full length	Loose or uneven binding, short or missing fringe, fringe unequal at the two ends
Moth and odour	Pile parted near edges and on the back; storage area seen; rug smelled for damp	Larvae, casings or grazed pile; damp or sour smell from incomplete drying

Mills often quote quality in local codes rather than knots per square inch. The inspector counts the actual knots and reports them in the unit on your purchase order.

Abrash or dye fault?

Abrash is the gentle colour change that appears when a weaver moves to a new batch of hand-dyed wool. Because a rug is woven row by row, abrash runs across the width as a band. It is part of the character of a hand-knotted rug, and many buyers accept or even ask for it.

A dye fault looks different. It is patchy rather than banded, has hard edges, or appears as a stain, a pink or grey halo around a deep colour, or a pale spot after washing. Uneven fading on one side of a rug also points to drying or storage, not to abrash.

The inspector photographs each band from both ends, because pile direction changes how it reads. If your specification is silent on abrash, a strong band is reported as a Hold for you to decide.

Common hand-knotted wool rug defects and how they are classed

Defect	Class
Live moth larvae in the lot	Critical
Knot count well below the agreed figure	Major
Size outside tolerance or rug clearly out of square	Major
Colour bleeding into the ground or fringe	Major
Wrong-colour knots or design error visible on the face	Major
Rippling that does not relax when laid flat	Major
Shade band outside the agreed abrash	Major or minor by strength
Slightly uneven fringe length or loose binding stitch	Minor

Your defect list decides the final class.

Rules that apply to wool rugs from India

US flammability. Rugs larger than 6 ft in one dimension and 24 sq ft in area fall under 16 CFR 1630; smaller ones under 16 CFR 1631, which allows a failing small rug to be sold only with a permanent "FLAMMABLE" warning label. Both need a General Certificate of Conformity based on a test or a reasonable testing program; a rug made for children needs testing by a CPSC-accepted lab. The standard lets one-of-a-kind pieces, such as antiques, be excluded from testing under conditions set by the CPSC; ask your lab before relying on that for a production order.
US labelling. Rugs are labelled under the Textile Act, not the Wool Act, with fibre content, country of origin and the importer's name or RN. The backing can be excluded from the fibre statement.
EU labelling. Regulation (EU) 1007/2011 covers the textile upper layer of a floor covering. See EU textile labelling and country of origin labelling.
Mothproofing. A rug treated with a mothproofing agent is a treated article under the EU Biocidal Products Regulation (EU) 528/2012. The active substance must be approved for that use, and a label is needed when a biocidal claim is made.
Labour due diligence. The US Department of Labor's List of Goods names carpets from India for child labour and forced labour, and US law bars imports made with forced labour. The EU Forced Labour Regulation (EU) 2024/3015 applies from 14 December 2027. Programmes such as GoodWeave and Care & Fair are voluntary.

Packing, transit and your purchase order

Rugs are rolled with the pile, not against it, wrapped in polythene and then woven sacking. A rug packed before it is fully dry can grow mould in a sealed container, so the inspector checks dryness, roll direction and the size and design label on each roll.

Put these in your purchase order:

Knot count per square inch (or per square decimetre), knot type, and whether jufti knots are allowed.
Size tolerance in centimetres and the maximum diagonal difference.
Pile height after final shearing, wool type, and whether silk highlights are included.
The approved strike-off and how much abrash you accept.
Binding and fringe style, and fringe length.
Mothproofing yes or no, and which lab tests (flammability, colour fastness) you need. We can pull samples through lab testing coordination.

For finer wool-silk pieces, see silk rugs. For faster, cheaper construction, see hand-tufted rugs.

Sources

Frequently asked questions

How do you count knots on a hand-knotted rug?

On the back. The inspector counts knots along one inch horizontally and one inch vertically and multiplies them, at three or more places across the rug. The figure is reported in the same unit as your purchase order, such as knots per square inch.

Is abrash a defect?

Not by itself. Abrash is a colour band caused by a new batch of hand-dyed wool, and it runs across the width. Patchy colour, stains or colour halos are dye or washing faults. Your specification should say how much abrash you accept.

Can a rug that is too small be fixed?

Sometimes. Workshops can wet and stretch a rug on a frame to gain a little size, but a rug forced too far may shrink back after delivery. The inspector notes stretch marks and re-measures after the rug has rested.

Can you tell hand-knotted from hand-tufted?

Yes. A hand-knotted rug shows individual knots on the back and its fringe is the warp itself. A tufted rug has a cloth backing glued over the back and a fringe sewn on.

Can an inspection prove a rug was made without child labour?

No. An inspection checks the goods. Labour due diligence needs supplier mapping, audits and, if you choose, a voluntary certification programme. Our factory audit adds basic social-compliance observations at the workshop we visit.

Know before it ships

Tell us the product, the factory's city and your ready date. We confirm the inspector, the notice time and the price before you book.

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Hand-knotted wool rug inspection in India