What Are Prehung Interior Doors? A Complete Guide for Homeowners and Contractors
Prehung interior doors are becoming increasingly popular in residential and commercial construction projects due to their convenience, consistent quality, and fast installation. In this guide, we explain what prehung interior doors are, how they differ from slab doors, their advantages, and why many builders and contractors trust SPDO Doors as their supplier in China.
What Are Prehung Interior Doors?
A prehung interior door is a fully assembled door unit that includes:
The door slab
Door frame (jamb)
Pre-installed hinges
Latch and strike plate preparation
Door stop molding
Optional trim
Because everything is assembled at the factory, the door is ready to install, making it ideal for both new construction and renovation.
How Do Prehung Interior Doors Work?
Prehung doors are installed as a single unit. Contractors simply place the entire frame into the rough opening, level it, secure it with screws, and the door is ready to use.
This eliminates on-site alignment issues and speeds up installation—especially in multi-unit projects such as apartments, villas, hotels, and office buildings.
Prehung vs. Slab Interior Doors
1. Prehung Door
Includes frame and hinges
Quick installation
Great for new builds
Best when replacing both door & frame
2. Slab Door
Door only, no frame
Requires precise measurements
Ideal when keeping the existing frame
Lower initial cost
Which Is Better?
For speed and precision → choose prehung doors
For renovation with existing frames → choose slab doors
Benefits of Prehung Interior Doors
1. Faster Installation
Everything is pre-aligned, saving contractors hours of labor.
2. Better Door Performance
Correct hinge placement ensures smooth, long-lasting operation.
3. Reduced On-Site Errors
Factory assembly minimizes human error during installation.
4. Ideal for Large Projects
Prehung units help maintain consistency across hundreds of doors.
5. Cost-Effective for Contractors
Less labor + fewer mistakes = overall lower project cost.
Types of Prehung Interior Doors
1. Wooden Prehung Doors
Solid wood or engineered wood for premium interior spaces.
2. WPC Prehung Doors
Waterproof, termite-resistant, suitable for bathrooms and humid areas.
3. PVC and Melamine Prehung Doors
Budget-friendly options for residential and commercial projects.
4. Fire-Rated Prehung Doors
Used in hotels, schools, hospitals, and public buildings.
SPDO Doors can produce all the above with OEM/ODM customization.
Why Choose SPDO Doors for Prehung Interior Doors?
As a professional manufacturer in China with over 10 years of export experience, SPDO Doors is trusted by builders, contractors, wholesalers, and project developers worldwide.
Our Advantages
✔ Precision Manufacturing with CNC Technology
Ensures perfect alignment for prehung doors.
✔ One-Stop Customization (Door + Frame + Hardware)
We support OEM/ODM, custom sizes, finishes, and materials.
✔ Strong Project Experience
SPDO Doors has supplied doors for apartments, villas, schools, hotels, and government buildings across Africa, the Middle East, Southeast Asia, and Europe.
✔ Free Design & Free Samples
Helping clients speed up decisions and reduce sourcing risk.
✔ Door-Wall-Cabinet Integrated Solutions
Not only doors—we also produce wardrobes, kitchen cabinets, and wall panels for complete interior solutions.
If you're looking to purchase prehung interior doors from China, SPDO Doors is a reliable factory partner.
Common Applications for Prehung Interior Doors
Residential housing projects
Apartment buildings
Villas and townhouses
Schools and kindergartens
Hotels and hospitality
Office buildings
Commercial interiors
How to Choose the Right Prehung Interior Door Supplier
When sourcing from China, look for a manufacturer that offers:
Stable production capacity
Door + frame consistency
High-quality core materials
Custom size capability
Export experience
Reasonable MOQ
Fast lead time
SPDO Doors meets all these requirements and supports long-term B2B cooperation.
FAQ: Prehung Interior Doors
1. Are prehung interior doors easy to install?
Yes. They are designed for fast installation because the frame and hinges are factory assembled.
2. Can I customize the size and finish?
Yes. SPDO Doors provides full customization for size, materials, color, and hardware.
3. Do prehung doors include hardware?
They include hinges, but handles and locks can be added according to customer request.
4. Are prehung doors suitable for renovations?
Yes, especially when both the old door and frame need replacing.
5. Do prehung doors cost more?
The initial cost may be slightly higher, but labor savings make them more economical overall.
