Assembly Line

How coir doormats are made

The bristles on a coir doormat are coconut husk, soaked for months until microbes rot away everything but the fiber.

stations
9
things upstream
64
raw sources
22
steps from the ground
10

The short version

A coir doormat starts as the husk of a ripe coconut. The husks soak in water for months while microbes loosen the fiber, then machines beat the fibers free. They are sorted, sun-dried and spun into coarse yarn. On a tufting line, short cut pieces of yarn are set into a layer of liquid PVC that hardens to hold them, and the mat is cut, sheared and stenciled.

  1. Split off the husks

    Each coconut is driven down onto a spike to split the fibrous husk away from the hard shell. A practiced husker can do about 2,000 a day by hand, and crushing machines can strip that many in an hour.

    about 2,000 coconuts a day by hand

    Goes in
  2. Soak the husks for months

    Husks sit in pits, nets or slow rivers while microbes digest the soft tissue around the fibers. Brown coir for mats is retted in fresh water. Crushing machines can cut the soak to about a week, but the traditional method takes most of a year.

    6 to 10 months

    Goes in
  3. Beat out the fibers

    Flat beater arms whirling inside steel drums pound the retted husk until the fibers come loose from the pith and skin. Workers once did this with wooden mallets.

  4. Sort the fibers by length

    A slower drum grades the loose fiber. Short pieces go to mattress padding, medium lengths become doormats, and the longest are saved for twine and rope. The fiber then dries spread out in the sun.

  5. Spin the coarse yarn

    Dried fiber is twisted into thick yarn, today mostly on a spinning machine called a ratt. In India much of this is a cottage industry in coastal villages.

  6. Tuft into liquid PVC

    An automatic line cuts the yarn into short pieces and sets them upright in a layer of liquid PVC. Packed side by side, the cut ends form the scraping brush.

    Goes in
  7. Cure the backing

    Heat on the curing line sets the PVC into a solid sheet that locks every tuft in place and grips the floor. The mat comes off as a continuous roll.

    15 to 25 mm thick

  8. Cut and shear level

    Mats are cut to size from the roll, and a shearing line trims the bristles to one even height.

  9. Stencil on a design

    Paint is sprayed or printed through stencils onto the bristle tips to lay down the pattern or lettering. The mats are dried, labeled and packed.

    Goes in
End of the lineCoir doormat

Worth repeating

  • Coir is one of the few natural fibers that resists salt water, and sailors were using it for ship ropes by the 11th century.
  • The Indian state of Kerala produces 60% of the world's white coir fiber.
  • Coir floats, so long lengths of coir rope do not drag down the boats and buoys they are tied to.

Back to the ground

Follow every input upstream and coir doormat starts as these 22 raw sources.

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Sources

Cite this page: "How coir doormats are made." Assembly Line, 2026-11-03. https://assemblyline.org/make/doormat

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