Door Jamb

Related terms

• Head

  The horizontal top member of a window or door frame, below the structural header.

• Jamb

  The vertical side members of a window or door frame that the unit is mounted within.

• Door Sweep

  A seal along the bottom edge of a door that closes the gap to the threshold against drafts, water, and pests.

• Door Closer

  A device that controls a door's closing speed and ensures it latches, common on garage-to-house fire-rated doors.

• Double-Hung Window

  A window with two operable sashes that both slide vertically and usually tilt in for cleaning. The most common residential window in olde…

• Design Pressure (DP)

  A rating of how much wind load a window can withstand. Higher DP is required in high-wind and coastal zones.

• Double-Pane / Double-Glazed

  A two-pane insulated glass unit, the modern baseline for energy-efficient windows.

• Deadbolt

  A lock bolt thrown by a key or thumbturn (not spring-actuated), the primary security lock on an exterior door. Grade 1 is the highest res…