The above video gives you some examples of shocking, gaping, setting, and forcing the inward swinging door. One thing firefighters often leave out is the initial shock of the door.
Shocking the door can indicate where the door is secured and how many locking points are engaged. Failing to do this may result in extended forcible entry time, allowing the fire to grow possibly beyond the capabilities fo the first due alarm assignment.
The above picture is a door I encountered on an emergency response a few years ago. As you can see there is no exterior indication of the type, or number of locking mechanisms that may be in place.
The inside of the door reveals to us that this door is usually secured by a rim lock on the top, and a hasp with a type of “S” clip at the bottom. Is this door impossible to force? Absolutely not, but without identifying these locks it could lead you down the wrong path to force these doors, causing the door become deformed yet still secured and delaying or denying entry all together.
Visual size up while important is not the end all be all, we need to perform a physical size up in order to identify how secure these doors are.
So remember SHOCK, GAP,SET,FORCE and you will improve your success in forcing doors 10 fold.
As usual thanks for reading, spread the word, and STAY SAFE!