A pre-hung door is a complete door unit that is preassembled and ready for installation in a door frame. It consists of several components, including the door slab, door frame, hinges, and often a threshold. Pre-hung doors are typically used for interior and exterior doors in residential and commercial buildings.
Here are the key components of a pre-hung door:
1. **Door Slab:** This is the actual door panel, which can be solid or hollow-core, and it may have various designs and finishes.
2. **Door Frame:** The door frame includes the vertical door jambs (sides) and the horizontal head jamb (top). It is designed to fit into the rough opening in the wall.
3. **Hinges:** Pre-hung doors come with hinges already attached to the door and the frame. These hinges allow the door to swing open and closed.
4. **Threshold:** Exterior pre-hung doors often include a threshold, which is a horizontal piece at the bottom of the frame that seals the gap between the door and the floor.
5. **Weatherstripping:** Many exterior pre-hung doors also have weatherstripping to provide a seal against drafts and moisture.
Pre-hung doors offer several advantages over traditional door installation, including:
- **Convenience:** They come fully assembled, which simplifies the installation process.
- **Consistency:** Pre-hung doors are typically manufactured to precise standards, ensuring a consistent fit and alignment.
- **Time-Saving:** Installation of a pre-hung door is generally faster than assembling and installing individual components separately.
- **Professional Finish:** Pre-hung doors often come with factory finishes that can provide a polished look.
These doors are commonly used for both interior and exterior applications, such as entry doors, bedroom doors, closet doors, and more, making them a popular choice in construction and remodeling projects.