The jambs are three of the sides that surround the doorway itself. The hinges and locks attach to one of several two vertical facet jambs. A horizontal head jamb is positioned over. Doorway jambs assistance the doorway, making sure it hangs level with the ground and closes tightly for defense. https://johnnyeovch.ampedpages.com/glass-panel-things-to-know-before-you-buy-56745748