Medicine: Bark of white oak contains tannin, an astringent, which can be applied to insect bites. The bark of oak can be brewed into a tea for diarrhea, and the scraped and dried inner bark of Red or Bur (Q. macrocarpa) oak can made into tea to relieve heart symptoms.

Technology: The wood was carved to make awls, corn pounding mortars, and other tools. Oak bark was used in making some Iroquois canoes. In later times basket splints were made of oak because of the toughness and durability of the wood. Inner bark of the Bur oak was used in Chippewa red and black dye recipes. Black oak is also known as Dyer's Oak, as the orange inner bark produces strong dye.