The jambs are 3 of the edges that surround the doorway by itself. The hinges and locks attach to among the two vertical facet jambs. A horizontal head jamb is positioned over. Door jambs guidance the door, guaranteeing it hangs level with the ground and closes tightly for defense. Here https://bedroom-lights00864.aboutyoublog.com/30534561/how-noise-reduction-can-save-you-time-stress-and-money