Dattergulv

Dattergulv is a term used in Nordic architectural and flooring literature to describe a traditional wooden floor construction. The exact origin of the term is unclear, but it appears mainly in references to Norwegian, Danish, and Swedish vernacular buildings. In general, dattergulv refers to a simple wooden floor formed by wide boards laid directly over a timber subfloor, often with a minimal gap between boards and a light, natural finish. The boards are typically spruce, pine, or occasionally oak, depending on local availability. The floor is usually installed with the boards running perpendicular to the main joists and fastened with nails or pins that are sometimes left visible along the edges.

Dattergulv is associated with rural houses and farm buildings of the 17th to 19th centuries, where it provided a durable, repairable surface that could be re-sawn, replaced, or refinished as needed. In many cases, the surface would be treated with oil or wax to enhance durability and reduce wear. The term has also been used by modern restorers and designers to describe a traditional, rustic aesthetic in new-build or renovated interiors.

Today, dattergulv may be preserved in heritage buildings or reproduced in contemporary Scandinavian design as a nod to historical floorcraft. Maintenance emphasizes humidity control, periodic re-finishing, and care to avoid moisture-related damage to the timber.