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A sewn boat is a type of wooden which has its planks sewn, stitched, tied, or bound together with natural fibre rope (e.g., in the ) or flexible wood, such as roots and branches.A.H.J. Prins, 1986. Handbook of Sewn Boats: The Ethnography and Archaeology of Archaic Plank-Built Craft. Maritime Monographs and Reports No.59. Greenwich, London: The National Maritime Museum.(187 p’s) Sewn boat construction techniques were used in many parts of the world prior to the development of metal fasteners, and continued to be used long after that time for small boats to reduce construction costs where metal fasteners were too expensive.McGrail S. and Kentley, E., 1985. Sewn plank boats: Archaeological and Ethnographic papers based on those presented to a conferences at Greenwich in November 1984. National Maritime Museum, Greenwich


Name and similar techniques
Although well established, the sewn boat name is somewhat misleading since it suggests or skin construction, as often found in . Some have proposed to use laced boats instead. A modern construction method that resembles sewn boats is the stitch and glue method; in this technique plywood panels are stitched together, often with wire, and the seams are reinforced with composite; the stitching may then be removed or may remain in place. Also related is the .

is used in the distinctive maritime technology of Austronesian peoples.


Construction
Sewn boats start with the construction of the hull, or outside "shell" of the boat, rather than the frame, resulting in a type of structure. Carefully shaped planks are connected at the edges. The planks may overlap, as in the , or join flush at their edges, as is found in Arab dhows and along the coast of India.
(2025). 9780199271863, Oxford University Press.
As the planks are placed together, the hull begins to bend into the desired shape. Internal framing may be added to the planks after they are sewn in, providing additional rigidity.

While wooden pegs (often called treenails) can be used to fasten thicker clinker planks, this technique only works if the planks are thick enough to hold the pegs. Because of this, large ships were often built using pegs, while smaller boats would use sewn planks.McCarthy, M., 2005. Ships' fastenings: from sewn boat to steamship. Texas A&M University Press.

The replica of the Belitung shipwreck, Jewel of Muscat, was built mostly by Indian shipwrights with extensive experience of sewn planking construction. The ropes used to sew the planks together were tightened to very close to their breaking strain. (This is in contrast to the much lower sewing tensions proposed in an earlier theoretical model.) The multiple stitches at each pair of holes and the relatively close spacing of those holes mean that there is a substantial clamping force holding the edges of the planks together. This has shown to have good structural properties and the designer argues that this is superior to a similar vessel with metal fastenings, where those fastenings concentrate forces whilst sewing distributes them across the hull structure.


History
The earliest surviving examples of plank-built boats are the , the earliest of which is dated to . These are sewn boats. The investigated example, BG10, had an unusual sewing technique, with the continuous fibrous strap running at right angles to the long direction of the planks. Therefore each length of strap went through all the planks on that side of the vessel. In contrast, other sewn boats that use continuous sewing (as opposed to a series of individual stitches) have the thread go along the seam between two planks.
(2025). 9781785704611, Oxbow Books.

A well-known early example of a sewn boat is the long "solar barque" or funerary boat on show near the Gizeh pyramid in Egypt; it dates back from c. 2500 BC. The sewn construction was a natural step when coming from raft or reed boatbuilding, which dates from some thousands of years before that. The oldest sea-going vessel was the in Croatia, c. 1200 BC. In other parts of the world, the oldest sewn craft comes from , where one sample (called F3) mass-spectrometry dates to 2030 BC. Later finds include some early Greek ships. The oldest Nordic find is the in Denmark (c 300 BC). In , , and small sewn boats have been constructed more recently; until the 1920s in poor areas of Russia.e.g. Litwin, J., 1985. Sewn Craft of the 19th Century in the European part of Russia. In McGrail S and Kentley: 253-268.h

Sewn construction is used in the various forms of the Austronesian "" of the (which also used the techniques)

(2025). 9781920942854, ANU E Press. .
and the and native to the Red Sea, Persian Gulf, and Indian Ocean.Ralph K. Pedersen. "Traditional Arabic watercraft and the ark of the Gilgamesh epic: interpretations and realizations." Proceedings of the Seminar for Arabic Studies 34 (2004) 231-238, p.231.
(2025). 9780817319397, University of Alabama Press. .
Despite their proximity and similarity, they differ markedly from each other, indicating that they developed independently. Austronesian boat-sewing techniques are discontinuous and are only visible from the inside surfaces of the hull, while South Asian and Middle Eastern boat-sewing techniques are visible in both the exterior and interior of the hull and are continuous.
(2025). 9789292234140, UNESCO. .


Comparison with other traditions
Though the sewn boat technique (but not the lashed lugs) is also used for boats in the western traditions, it differs in that the stitching in Austronesian boats are discontinuous and only visible from the inside of the hull. This indicates that the sewn boat techniques of the Indian Ocean and Austronesia are not culturally-linked and developed independent of each other. The planks of ancient Austronesian ships were originally joined together using only the sewn boat technique. However, the development of in Maritime Southeast Asia in the last two thousand years resulted in the replacement of the sewing technique with internal dowels, as well as increasing use of metal nails.
(2025). 9789292234140, UNESCO. .
(2025). 9781920942854, ANU E Press.


Examples of sewn boats


See also


Notes

External links

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