Factory-Direct Interior Door Manufacturer
MR DOOR US INC operates as the U.S. headquarters and manufacturing coordination arm behind our factory-controlled interior door systems. Through direct oversight of production standards, specifications, and quality control, we deliver interior doors engineered as complete systems — not pieced-together components.
Our overseas manufacturing partner, Mingren, was founded in 2002 and operates a 100,000 m² (1,076,000+ sq ft) advanced manufacturing facility, established in 2018. The factory supports large-scale residential and commercial production with an annual output exceeding $100 million USD, supplying developers, builders, and institutional clients worldwide.
From in-stock pre-hung door systems to fully custom manufacturing programs, MR DOOR US INC ensures consistent fit, clean alignment, and predictable installation — supporting projects that demand reliability, scale, and repeatable results.
Why Choose Us for doors?
MR DOOR US INC is structured around precision, repeatability, and quality control — not retail shortcuts. Every interior door system is engineered to reduce installation variables while maintaining long-term performance and consistency.
What sets our factory-controlled systems apart:
Factory-Assembled Systems
Doors are manufactured, assembled, and inspected as complete units — slab, frame, concealed hinges, magnetic mortise lock, and casings — ensuring alignment and fit before shipment.Consistent Quality Across Projects
Centralized production standards eliminate inconsistencies commonly found with mixed-supplier or on-site assembled doors.Custom & In-Stock Programs
Support for both ready-to-ship in-stock models and fully custom manufacturing, allowing projects to balance speed, cost, and design flexibility.Controlled Lead Times
Predictable production scheduling enables accurate planning for residential, multi-unit, and commercial projects.Installation Efficiency
Systems are designed to minimize on-site labor, reduce errors, and streamline installation without cutting, measuring, or retrofitting.Nationwide Distribution
MR DOOR US INC supplies interior door systems across the United States with secure packaging and coordinated logistics.
By maintaining direct oversight of manufacturing, materials, and system design, MR DOOR US INC delivers interior doors built for scale, consistency, and professional-grade results.
Ready to Specify a Factory-Built Door System?
Manufacturing Capacity & Production Scale
MR DOOR US INC operates with a factory-backed manufacturing structure designed to support both large-scale developments and precision-driven custom projects.
Our production is supported by Mingren, a manufacturing operation founded in 2002, with expanded large-scale facilities established in 2018 to support modern system-based interior door production.
Factory capabilities include:
100,000 m² Manufacturing Facility
Purpose-built for high-volume, systemized interior door production.
Annual Output Exceeding $100 Million USD
Supplying residential, multi-unit, hospitality, and commercial projects.
System-Based Manufacturing Lines
Dedicated lines for solid-core doors, fire-rated doors, steel-wood doors, custom veneers, and full pre-hung systems.
Precision CNC & Automated Processing
Ensures dimensional accuracy, consistent tolerances, and repeatable quality across all orders.
Material Control & Finishing
In-house handling of veneer processing, core construction, edge banding, surface finishing, and quality inspection.
Export-Ready Production
Experience supplying international markets, with packaging and logistics standards aligned for overseas shipment and U.S. distribution.
This manufacturing scale allows MR DOOR US INC to deliver consistent quality, stable lead times, and scalable output — whether supporting a single custom residence or a multi-phase development.
From Factory Floor to Finished Install
Pre-hung, Aligned, Shipped Ready
