Jamb

Definition

A jamb is the vertical side of a door or window frame, often referred to as the side piece or post of an opening.

Purpose

The purpose of a jamb is to provide structural support to the door or window frame, ensuring proper alignment and functionality. Jambs also help in securing the door or window within the wall opening.

Examples of Use

1. Door Installation: Jambs are crucial in door installations, providing a secure frame for the door to hang on and operate smoothly.
2. Window Framing: In window installations, jambs support the window unit and ensure it is properly sealed and aligned.
3. Renovations: During renovations, jambs may be replaced or reinforced to improve the functionality and appearance of doors and windows.

Related Terms

• Head Jamb: The horizontal part of the door or window frame at the top.
• Sill: The horizontal part of the frame at the bottom of a window.
• Door Frame: The complete assembly of jambs, head jamb, and sometimes a threshold or sill.

Notes

Jambs must be installed accurately to ensure the proper operation of doors and windows. Misalignment can lead to issues such as sticking doors or windows and compromised security.