Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Vertical Folding Door / Folding Door

Vertical Folding Door

The Vertical Folding Door promotes space efficiency in living and office environments. Unlike traditional doors, the Vertical Folding Door does not prevent door-adjacent space from being used.

Vertical panels rotate 90 degrees and compact next to one side of the door frame. This provides enough space for easy passage, but does not extend beyond the frame, saving both internal and external wall space surrounding the doorjamb.


National Cheng Kung University

National Cheng Kung University
Department of Industrial Design
Tainan City, Taiwan

Adam Book,
National Cheng Kung University

Wei-Ting Lu,
National Cheng Kung University