Factory-Direct Interior Door Manufacturer in California
MR DOOR US INC supplies full-package pre-hung interior door systems and custom-manufactured interior doors for contractors, builders, and commercial projects across California.
Backed by a 100,000 m² production facility, our factory-direct model supports both in-stock systems and fully custom door programs for projects of any scale.
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Who We Are
MR DOOR US INC is a U.S.-based interior door supplier operating on a factory-direct manufacturing model. We specialize in full-package pre-hung interior door systems and large-scale custom door production for contractors, builders, developers, and commercial projects nationwide.
Our operations are supported by a 100,000 m² manufacturing facility capable of producing custom interior doors to exact project specifications. This allows us to support everything from in-stock system orders to fully custom programs without relying on third-party distributors or retail supply chains.
Headquartered in Orange County, California, we support projects across the United States with consistent quality, controlled production, and dependable lead times.
- Factory-direct manufacturing with controlled production
- Full-package pre-hung systems (door, frame, hardware)
- Large-scale custom door manufacturing capability
- Serving contractors and commercial projects across United States
How We Operate
MR DOOR US INC operates on a factory-direct manufacturing model built to eliminate retail markups and reduce on-site installation complexity. Our interior door systems are engineered, assembled, and quality-controlled at the factory level to ensure consistent specifications, precise tolerances, and predictable installation outcomes for professional projects.
• Factory-controlled specifications across all door systems
• Pre-attached hinges and magnetic lock hardware
• Reduced installation time, rework, and callbacks
• Reliable production timelines for accurate project planning
Experts in Customized Interior Door Solutions
MR DOOR US INC delivers system-based interior door solutions engineered for consistency, efficiency, and long-term performance. Our factory-direct programs support both in-stock door systems and fully custom manufacturing, allowing professional teams to execute projects with predictable results at any scale.
Commitment to Quality and Long-Term Performance
Every interior door system is engineered as a complete assembly—not a collection of parts. Our designs integrate factory-aligned frames, concealed hardware, magnetic mortise locks, and solid-core construction to ensure clean installation, improved sound control, and reliable performance over years of use.
Responsible Manufacturing Practices
We utilize efficient production methods and durable materials without compromising design intent. Our manufacturing process includes precision machining, low-emission substrates, UV edge-banding technology, and reduced reliance on surface coatings—supporting refined finishes for residential and commercial interiors.
Accurate Project Quotation & Coordination
Interior door systems require coordination across sizing, hardware, finishes, and schedules. Our team provides structured quotations based on real project inputs, resulting in predictable lead times, transparent pricing, and fewer revisions once production begins.
System-Based Product Programs
Our offerings include both ready-to-install in-stock systems and full custom manufacturing programs. In-stock models such as the Daegu system support fast project timelines, while custom programs allow tailored dimensions, finishes, and configurations—maintained within the same factory-controlled system logic.
Support for Industry Professionals
MR DOOR US INC works directly with industry partners through OEM manufacturing, wholesale supply, and dropshipping programs. Each system is inspected prior to shipment, making our process suitable for multi-unit developments, hospitality projects, and large-scale residential builds where consistency is critical.
Our Journey of Innovation and Excellence
From our early manufacturing roots in South Korea to our current U.S. headquarters in Irvine, California, MR DOOR US INC has built its foundation on precision manufacturing, large-scale production, and system-driven interior door design. Each milestone reflects a step toward greater control, consistency, and reliability in modern interior door systems.
Manufacturing Origins in South Korea
Founded one of South Korea’s early dedicated interior door manufacturing operations, supplying large-scale residential and commercial projects for major developers and industrial partners including Hyundai, Samsung, and POSCO.
International Expansion & Quality Control
Established a production facility in China while maintaining South Korean quality control standards. This expansion allowed greater production capacity while preserving precision manufacturing processes and material consistency.
Large-Scale Construction Partnerships
Began supplying interior door systems to major Chinese real estate developers such as Vanke, Jindi, and Yuexiu, supporting high-volume residential construction and multi-unit developments.
Entry into the U.S. Market
Introduced contemporary interior door designs to the United States under Selta Door Inc., laying the groundwork for long-term U.S. operations and market adaptation.
Advanced Manufacturing Infrastructure
Opened a 100,000 m² advanced manufacturing facility in Guangxi, China, integrating modern automation, sustainability practices, and system-based door production to support global demand.
MR DOOR US INC & Full-Package Systems
Established MR DOOR US INC with headquarters in Irvine, California, launching factory-controlled, full-package interior door systems for the U.S. market. This marked the transition from component supply to fully engineered door systems designed for predictable installation and repeatable project outcomes.
Proudly Serving
Irvine, Los Angeles & Orange County
Our Irvine showroom and warehouse support Orange County and Los Angeles County, with nationwide shipping available (excluding Alaska and Hawaii).
Service Areas
- Irvine (Showroom & Warehouse)
- Orange County
- Los Angeles County
- Nationwide shipping (excluding Alaska and Hawaii)
Contact Information
MR DOOR US INC
2323 Main St Unit R-10
Irvine, CA 92614
Toll-Free: (877) 658-0808
Email: info@mrdoor.us
