Atlantic rollers so long as the vessel was small in overall displacement. Increasing the beam, due to the light nature of the method, did not commensurately increase the vessel's survivability under the torsional forces of rolling waves, and greater beam widths may have made the resultant vessels more vulnerable. There is an upper limit to the size of clinker built vessels, which could be and was exceeded by several orders of magnitude in later large sailing vessels incorporating carvel-built construction. Clinker requires relatively wide planking stock compared to carvel, as carvel can employ stealers to reduce plank widths amidships where the girth is greatest. The need for sufficient lap to accept the clench fastenings drives towards wider planks in proportion to thickness than can be employed in carvel. In all other areas of construction, including framing, deck, etc., clinker is as capable as carvel. Clinker construction remains to this day a valuable method of construction for small wooden vessels. UNESCO Intangible Cultural Heritage The Nordic clinker boat tradition was inscribed to the UNESCO List of the Intangible Cultural Heritage on December 14, 2021, as the first joint Nordic application to the list. See also Classic Boat (magazine) Dragon Harald Fairhair (ship) Gableboat Montagu whaler Longship Naglfar Oselvar Rivet Yoal Notes References Other sources Greenhill, Basil (1976). Archaeology of the Boat (London: Adam and Charles Black Publishers Ltd). . Greenhill, Basil, and Morrison, John S. (1995). The Archaeology of Boats & Ships: An Introduction. (London: Conway Maritime Press) . McKee, Eric (1972). Clenched Lap or Clinker: An Appreciation of a Boatbuilding Technique (Greenwich: National Maritime Museum). Leather, John (1990). Clinker Boatbuilding (Adlard Coles). . Shipbuilding