Which type of trim is typically installed at the top of walls and adds elegance to a room?

Crown moulding is the type of trim installed at the top of walls, where the walls meet the ceiling. Its primary purpose is to add an aesthetic touch to a room, creating a smooth transition between the wall and ceiling, which can enhance the overall elegance of the space. Crown moulding is typically more decorative and can come in various styles and profiles, allowing homeowners to choose a look that complements their interior design.

In contrast, baseboard is installed at the bottom of walls, providing a finished look and protecting the wall from damage. Casing is the trim surrounding doors and windows, serving more functional and structural roles, while a chair rail is installed partway up a wall, primarily used to protect the wall from damage from chairs and to visually divide the wall into two sections. Each of these trim types serves a specific purpose in interior design, but crown moulding stands out for its role in enhancing elegance at the top of the wall.