Thanks to great collaboration between architect, engineer and CNC technology, this stair was designed and erected within less than a month. 

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Made from 24mm x 50mm deep sections of Birch ply as balustrade hangers and treads with additional 50mm x 50mm softwood timber tread pieces sandwiched between, the stair was constructed on site from a kit of parts which had been CNC-cut from just three sheets of plywood.