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Exterior Float
Kovacs

Hanging stair
Minarc

Cantilevered tread

Tapered and Cantilevered
John Andrews Group

Floating
BA Collective

Folded plate
David Hertz Architect - SEA

Pinned tread
David Hertz Architect - SEA

Folded plate
David Hertz Architect - SEA

Single stringer, cantilevered tread

Curved steel

Single stringer, open riser

Hanging folded plate
Minarc

Curved
Cahill & Leese Architects

Cantilevered
Rockefeller Architects

Single Stringer
DU Architects
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