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Re:Could housing be cheaper and better if we stop building s... by ggcdn on Friday December 24, 2021 @11:37PM (#29680447)
A scissor stair can fit 2 stairways very compactly, looks like this is used on 432 park ave, for instance.

https://images.app.goo.gl/kz1826Y8xydc9G9L8

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