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

Don’t Let Her Wait / lock for ladies room

Don’t Let Her Wait
Don’t Let Her Wait

This lock is specially design for ladies' room,as we all know ,there's no appropriate space in ladies' room,lady waiting for others usually don't know people inside the partition is defecating or urinating .This is the main reason why the utilization rate of ladies' room is lower than that in mans' room . This design use logo and color to differentiate different using state,lady inside the door can choose between "long" and "short" so that she can tell others by the lock she is quick or not,this change can shorten the time people wait randomly,and make utilization rate higher ,waiting time shorter.


Shaanxi University of Science & Technology

Shaanxi University of Science & Technology
Shannxi xian, China

Yue Zhang,
Shaanxi University of Science & Technology

Tian Wenzhao

Ning Song

Lingyu Kong