Douglas fir is an excellent construction material. Many Interior Native people ate the seeds. Some Naive groups made a tea from the young twigs and needles, chewed dried sap which was said to be good for treating colds. Fir boughs were used ceremonialy for morning sweat bathes, and the washing of twins. Boughs were widely used as bedding in camps and pit houses. The rotten wood was used to smoke buckskin. Occasionally, the Interior Native peoples were able to harvest fir sugar.