Faerings are clinker-built, with planks overlapped and riveted together to form the hull. This type of boat has a history dating back to Viking-era Scandinavia. The small boats found with the 9th century Gokstad ship resemble those still used in Western and Northern Norway, and testify to a long tradition of boat building. Faerings may carry a small sail, traditionally a square sail, in addition to oars. The only significant difference being a conversion from a side-mounted rudder to stern-mounted. They are used as small fishing vessels in areas of modern Norway, and occasionally raced.