![Door failures noted during study: (a) Propped open; (b) Wedged open... | Download Scientific Diagram Door failures noted during study: (a) Propped open; (b) Wedged open... | Download Scientific Diagram](https://www.researchgate.net/publication/290150711/figure/fig2/AS:461383969054721@1487013918076/Door-failures-noted-during-study-a-Propped-open-b-Wedged-open-2-c-Propped.png)
Door failures noted during study: (a) Propped open; (b) Wedged open... | Download Scientific Diagram
![Fire door propped open with fire extinguisher. - Picture of Russell Square Hotel, London - Tripadvisor Fire door propped open with fire extinguisher. - Picture of Russell Square Hotel, London - Tripadvisor](https://media-cdn.tripadvisor.com/media/photo-s/14/11/66/02/fire-door-propped-open.jpg)
Fire door propped open with fire extinguisher. - Picture of Russell Square Hotel, London - Tripadvisor
![mannmcgowangroup on Twitter: "When is a #firedoor not a fire door? When it's wedged open! It is an engineered #firesafety device and a crucial part of the #passivefireprotection of every commercial & mannmcgowangroup on Twitter: "When is a #firedoor not a fire door? When it's wedged open! It is an engineered #firesafety device and a crucial part of the #passivefireprotection of every commercial &](https://pbs.twimg.com/media/D-8Rs9gWwAEa8qS.jpg)
mannmcgowangroup on Twitter: "When is a #firedoor not a fire door? When it's wedged open! It is an engineered #firesafety device and a crucial part of the #passivefireprotection of every commercial &
![Survey Q4: "What are some 'rules' regarding fire doors?" - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. Survey Q4: "What are some 'rules' regarding fire doors?" - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](http://www.idighardware.com/wp-content/uploads/2010/01/Hold-Open-Fire-Extinguisher.jpg)
Survey Q4: "What are some 'rules' regarding fire doors?" - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
![Survey Q4: "What are some 'rules' regarding fire doors?" - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. Survey Q4: "What are some 'rules' regarding fire doors?" - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](http://www.idighardware.com/wp-content/uploads/2010/01/Hold-Open-Bungee.jpg)