The Bentwood Box is a uniquely fabricated container in which a single plank of wood is grooved where corners are desired. The wood is made pliable with heat and moisture and bent to form a four-sided shape. Wooded pegs or laces secure the two ends. Then the box shape is attached to a bottom piece of wood, which has been grooved on its edges to fit. The top, which is optional, is grooved to fit the sides.

The Native people of the Pacific Northwest Coast, including parts of southern Alaska, western British Columbia and southern Washington traditionally produced Bentwood Boxes.

The boxes and chests were used as storage containers, the watertight ones for holding hot rocks and water for cooking, and the highly decorated ones as symbols of wealth. They range in size from small (measured in inches) to massive (large enough to provide seating).