Lavetthuset is a museum located in Oslo. The museum's aim is to preserve and communicate the history of the low water, a traditional type of boat that has been important in Norwegian maritime culture. Through exhibitions and collections, Lavetthuset gives visitors an insight into the craftsmanship and use of these boats, as well as their importance for the local communities along the coast.
The exhibitions include both historical objects and modern interpretations of low tides, and the museum also offers information on boat building and sailing. Lavetthuset functions as a cultural monument and a learning centre, where visitors can learn about maritime traditions and craft techniques. The museum also organizes various activities and events that promote interest in the art of boat building and seafaring.