Casing
Definition and meaning of Casing in real estate.
Casing is the decorative molding or trim installed around the perimeter of door and window openings to cover the gap between the frame and the surrounding wall. It provides a finished look and helps seal out drafts in residential and commercial buildings.
In more detail
During construction, installers leave small spaces between the window or door frame, known as the jamb, and the drywall to allow for adjustment and settling. Casing covers these rough openings, creating a clean transition between different building materials. It is typically made from wood, medium-density fiberboard, or vinyl, and comes in various profiles to match the architectural style of the home.
Properly painted and sealed casing also helps reduce air leakage and moisture intrusion, which improves energy efficiency. In addition to its functional benefits, casing is a key design element that can influence a buyer's perception of a property's craftsmanship.
Key facts
| Category | Property Types & Construction |
|---|---|
| Common materials | Wood, MDF, or vinyl |
| Primary function | Concealing frame gaps and adding decoration |
A home renovator installs pine casing around a newly replaced bedroom door to conceal the structural gap and match the traditional molding throughout the house.
Frequently asked questions
What is the difference between casing and trim?
Trim is a general term for all molding in a house, while casing refers specifically to the trim that frames doors and windows.
Does exterior casing require different materials?
Yes, exterior window casing typically uses weather-resistant wood or composite materials that can withstand moisture and temperature swings.