Clinker-built, also known as lapstrake-built, is a method of boat building in which the edges of longitudinal hull planks overlap each other.
Diagram of clinker construction in the first half of the 20th century
Clinker built dinghy showing some of the basic structural details. The single rowing thwart supports the after end of the centre-board case. The pairs of knees at each end of the thwart can be seen; also the longitudinal stringer (rising) on which the thwart rests.
The Nydam boat, an early example of clinker construction.
The Gokstad Ship, a Viking longship, displaying the overlapping planks that characterize clinker construction.
The Newport medieval ship is a mid-fifteenth-century sailing vessel discovered when archaeologists investigated an articulated timber structure uncovered during the building of the Riverfront Arts Cen
Clinker (boat building)
…AD. It was employed by the Anglo-Saxons, Frisians, and Scandinavians in the early middle ages, and later in the Basque shipbuilding region where the Newport medieval ship was built. It was also used in cogs, the other major ship construction type found in Northern Europe in the latter part of the medieval period. UNESCO…
The Newport ship in the foundations of the Riverfront Arts Centre, 8 September 2002
Timbers from the Newport ship undergoing conservation, 2008