Vessel design and newbuilding
Owner-specific design, project coordination and outfitting across fishing and specialist vessels.
View sourceVessel design, newbuilding, repair and conversion in Skagen
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Owner-specific design, project coordination and outfitting across fishing and specialist vessels.
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Engines, propellers, hydraulics and onboard mechanical systems.
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Construction management and outfitting of custom vessels with partner-supplied hulls and specialist equipment.
Bottom treatment and spray painting using maritime coating systems, with specialist partners where applicable.
Installation, maintenance and repair of marine engines across manufacturers.
Installation and repair work involving onboard hydraulics and machinery.
Pipework, machinery and sanitary installations supporting vessel outfitting and repairs.
Repair and renovation of propellers and related propulsion systems.
Rebuilding and lengthening with coordinated hull, machinery, accommodation and handling-system alterations.
Dry docking and slipway handling for vessel repair and conversion.
Structural repairs and fabrication involving steel, aluminium and stainless steel.
Standard and custom accommodation fitting, interior joinery and owner-specific adaptations, including subcontracted packages where specified.
Design and engineering in collaboration with owners, including arrangement, planning, equipment selection and stability analysis.
High-pressure washing as part of vessel surface preparation and careening.
Coordinate onboard machinery, pipework, accommodation and specialist installation packages for newbuildings and conversions.
Abrasive surface preparation in the enclosed painting shed, subject to vessel fit and project requirements.
Repair and maintenance of wooden vessels through the joinery and shipbuilding capability.
Rogne AS
Delivered in March 2026, Rogne #482 is an 83 × 16 m pelagic purse seiner/trawler for Rogne AS. Karstensens designed and outfitted the vessel using a hull built by its Polish subsidiary and specialist equipment suppliers. Final particulars are 3760 GT, 2755 m³ RSW capacity and two 3600 kW main engines; trial speed was 18.9 knots at 7200 kW.
Polarbris AS
Delivered in August 2023, Polarbris #473 is a 43.5 × 11.5 m whitefish trawler designed by Karstensens for Polarbris AS, Kjell-Gunnar Hoddevik & co, with accommodation for 12 people.
Greenland Institute of Natural Resources
Delivered on 14 March 2012 for the Greenland Institute of Natural Resources, Sanna is a 32.25 × 10 m research vessel designed by OSK-ShipTech, with accommodation for 16 people including 10 scientists.
Historical 39.5 m ferry newbuilding with capacity for 200 passengers, designed by Ole Steen Knudsen.
Historical 37 m sailing-yacht newbuilding, designed by its owner, with 650 m² sail area.
Royal Danish Navy
Lauge Koch #428 is a 71.8 × 14.6 m patrol-vessel project for the Royal Danish Navy. Hull construction took place in Poland, outfitting in Skagen and subsequent military-equipment installation at Korsør. The vessel sheet’s September 2016 date was an estimate, not an established delivery date.
North Sea returned to owners Leif Steffensen, Karl-Arne Nielsen and Thomas Samuelsen on 16 May 2008 after stern, winch, hydraulic, accommodation and catch-handling work. KM-Service supplied the shrimp cooker and cooling spiral.
Spring 2006 preparation for Galathea III included research winches, measurement equipment, a crane and scientist accommodation containers.
Repair of the stern Simplex mechanical seal, documented in the yard’s 2008 repair archive.
Conversion of M/S Alondra from a container ship to a livestock carrier, completed in July 2017.
Hull-section extensions to Aaltje Postma, Patrick, Ocean Freja and Canopus during 2017.
Frank Doherty
Delivery of newbuilding 374, Western Viking, to Frank Doherty in 1997, followed by further newbuildings in 2003, 2005 and 2015.
DANIDA
Renovation of the Liemba ferry in Tanzania under DANIDA contracts during the 1990s.
Utsira
Vessel reference in the 2012 repair archive; the specific repair scope is not stated.
View sourceMærsk Frontier
Vessel reference in the 2011 repair archive; the specific repair scope is not stated.
View sourceRogne AS
Named owner/customer for newbuilding 482; dated delivery described separately.
View sourcePolarbris AS
Named owner of newbuilding 473, delivered August 2023.
View sourceGreenland Institute of Natural Resources
Named owner/customer for research vessel Sanna, delivered 2012.
View sourceRoyal Danish Navy
Named owner of Lauge Koch; historical vessel relationship, not endorsement.
View sourceKarstensens designs and builds fishing and specialist vessels and undertakes ship repair, conversion and outfitting in Skagen. Its shipyard services include steelwork, marine engines and propulsion, hydraulic installations, accommodation and surface treatment. Newbuilding projects combine its design and outfitting work with hull production and specialist equipment from subsidiaries and external partners. The shipyard traces its history to 1917. Historical project announcements include Borkumrif’s 2010 conversion: a 6 m lengthening, 2700 mm propeller and nozzle, moved wheelhouse, accommodation, winches and catch handling. The May/June progress account projected July completion; completion is not established. Its original 2001 newbuilding customers were Dan and Flemming Nielsen. The July 2010 Ocean Laura contract for Per Lund-Hansen and Kristian Barslund Jensen specified a 6 m extension of the 24 m trawler, a whaleback, raised wheelhouse and revised accommodation and catch handling; this account does not establish completion. Lunar Bow #500 is an 85.7 × 17.5 m vessel on order for expected delivery in July 2027. A July 2026 contract awarded to Orlogsskibe Danmark covers four naval environmental and minelaying vessels: OSK Design provides design, and Karstensens and Hvide Sande share construction, with delivery expected in 2028–2030.
Marine painting
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Updated Sep 13, 2026