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I think the picture says it all. The design of the unit allows you to have a higher shelf without you having to need a ladder to pick up the books of the last shelf. For the bookshelf is a stairway. The designer Danny Kuo. Via Tree Hugger say that this is an opportunity not only for bookshelves but also for clothes so takes up the most space.
Designers assume that supports the weight well but they say the weight limit.
I really liked the idea and ladder storage, and you?
images not mine
Source link: http://livroseafins.com/estante-escada/