« Back to Dictionary Index

Back Band

In construction and carpentry, a back band refers to the outside member of a door or window casing. It is an additional molding or trim that is applied to the outer edge of the casing to enhance its appearance and provide depth and dimension.

Key Characteristics:

  • Purpose: Enhances the aesthetic appeal of the door or window casing by adding a decorative element.
  • Placement: Positioned on the exterior edge of the casing, creating a raised profile that visually separates the casing from the surrounding wall.
  • Design: Can vary in thickness, width, and profile design, depending on architectural style and personal preference.


  • Enhanced Appearance: Adds architectural detail and visual interest to door and window frames.
  • Depth: Provides depth and dimension to the casing, making it stand out against the surrounding wall surface.
  • Transition: Creates a transition between the flat surface of the wall and the protruding edge of the casing, enhancing the overall design of the door or window.


  • Application: Installed after the door or window casing is in place, typically nailed or glued to the outer edge of the casing.
  • Variety: Available in various materials, including wood, MDF (medium-density fiberboard), and polyurethane, to match different architectural styles and preferences.


  • Interior Design: Commonly used in interior spaces to add decorative detail to door and window frames.
  • Exterior Design: Can also be used on exterior doors and windows to complement the architectural style of the building.


A back band is a decorative molding or trim that enhances the appearance of door and window casings by adding depth, dimension, and architectural detail. It plays a significant role in interior and exterior design, contributing to the overall aesthetic appeal of a building or space.

« Back to Dictionary Index