The Adirondack chair or Muskoka chair is a type of chair favored in rural, outdoor settings. The precursor to today's Adirondack chair was designed by Thomas Lee in 1903. He was on vacation in Westport, New York, in the heart of the Adirondack Mountains, and needed outdoor chairs for his summer home. He tested the first designs on his family.
The original Adirondack chair was made with eleven pieces of wood, cut from a single board. It had a straight back and seat, which were set at a slant to sit better on the steep mountain inclines of the area. It also featured wide armrests, which became a hallmark of the Adirondack chair.
After arriving at a final design for the "Westport plank chair," Lee offered it to Harry Bunnell, a carpenter friend in Westport, who was in need of a winter income. Bunnell quickly realized the chair was the perfect item to sell to Westport's summer residents, and apparently without asking Lee's permission, Bunnell filed for and received patent in 1905. Bunnell manufactured his plank chairs for the next twenty years.