The Korean design group KAMKAM have created the An Furniture collection.
Description from the designers:
Ax sheets (A3, A4, A5, etc) have “Golden Ratio” that promotes productivity by keeping the dimensions always (approximately) in the same ratio of width:length when they are folded in half. Inspired by these Ax sheets, we assigned fresh sculpture of distinctive ratio to furniture, which makes the furniture economical by saving raw materials. Since An Furniture also can be rearranged and relocated to a closet, a bookshelf, a storage cabinet and a drawer by a straightforward process, there would be no furniture better than this for single-person households.