The jambs are 3 of the edges that encompass the doorway itself. The hinges and locks connect to one of several two vertical side jambs. A horizontal head jamb is placed previously mentioned. Doorway jambs assist the doorway, ensuring it hangs amount with the floor and closes tightly for defense. https://charleso503fcy2.p2blogs.com/28896399/the-2-minute-rule-for-decibel-reduction