When it comes to opening doors, the two most important features are security and confidentiality. Door hardware is the first step in making every door safe and secure. Regulations require every door to meet certain standards, but making every door safe and secure is far beyond the scope of regulations. The door must be easy to enter and exit. At the same time, the door must be locked when it is not pleasant to enter. In addition, buildings must allow evacuation in the event of an emergency such as a fire