Wikipedia
Poteaux-sur-sol (Posts on a sill. Sol is also spelled sole and solle) is the name for a style of timber framing where relatively closely spaced posts rest on a timber sill by French settlers in the historical region of North America known as New France. Poteaux-en-terre and pieux-en-terre are similar but the closely spaced posts extend into the ground rather than resting on a sill on a foundation thus are a type of post in ground construction. Poteaux-sur-sol is similar to the framing style in the United Kingdom called close studding. Poteaux-sur-sol has confusingly also been used for other types of timber framing which have a sill timber such as post-and-plank, but is considered incorrect by some scholars.
Poteaux-sur-sol is a part of American historic carpentry but is known by its French name in North America as it was used in French colonial architecture used by French and French-Canadian settlers in North America. It was also used by Ukrainian peasants living in the 19th century on the open steppes or anywhere there was a timber shortage.