Shandong Duoping New Materials Co., Ltd. is a professional manufacturer and supplier specializing in interior aluminum alloy doors , integrating R&D, precision manufacturing, and customized solutions. With years of experience in the architectural door and building materials industry, we focus on core indoor requirements such as space separation, sound insulation, noise reduction, and design compatibility .
By combining high-precision processing technology with eco-friendly aluminum alloy materials, we provide interior door
solutions that offer
excellent sound and thermal insulation, long-term durability, and modern aesthetics . Our products are widely used in residential interiors such as bedrooms, studies, kitchens, and balconies, as well as
hotels, office buildings, apartments, and serviced residences, and are supplied to both domestic and overseas markets.
We sincerely look forward to becoming your trusted door system partner in China.
Designed specifically for indoor environments, our interior aluminum alloy doors are suitable for:
Residential interiors: bedrooms, studies, kitchens, balconies, walk-in closets
Commercial spaces: hotel guestrooms and corridors, office areas, meeting rooms
Apartments, serviced apartments, and boutique homestays
Multiple opening options— swing, sliding, and folding —allow flexible adaptation to different room layouts and entrance sizes. Custom colors and finishes enable seamless integration with modern, minimalist, Chinese-style, or light-luxury interior designs .
Sound & Thermal Insulation
High-density sealing strips combined with insulated or laminated glass effectively reduce indoor noise and heat
transfer, creating a quieter and more comfortable living environment.
Lightweight Yet Strong Structure
Aluminum alloy frames provide high strength without excessive weight. They are resistant to deformation, corrosion,
and fading, ensuring long-term indoor use with minimal maintenance.
Privacy & Lighting Balance
Glass options include clear glass for openness, frosted glass for privacy, and Low-E glass for enhanced thermal
performance—meeting different functional needs across interior spaces.
|
Category |
Specification |
Reference Value |
Standard |
|
Core Material |
Frame / Door Leaf |
Aluminum alloy frame + tempered glass / full aluminum panel |
GB/T 5237, GB 15763.2 |
|
Glass Options |
Glass configuration |
Clear / frosted glass 5+12A+5 mm, optional Low-E |
GB 15763.2 |
|
Performance |
Sound insulation / thermal performance |
≥32 dB / U-value ≤3.0 W/(㎡·K) |
GB/T 50121, GB/T 8484 |
|
Structure |
Opening type / service life |
Swing / double swing / sliding / ≥150,000 cycles |
QB/T 3893 |
The mainstream structure features aluminum alloy door frames combined with tempered glass or full aluminum door panels . Single-leaf, double-leaf, or multi-panel configurations are available based on project requirements.
Swing Doors: Equipped with 304 stainless steel hinges (concealed or exposed), offering smooth and stable operation
Sliding Doors: Silent tracks with buffering systems ensure smooth, noise-free movement while saving interior space
Folding Doors: Ideal for wide openings, offering flexible opening and closing
Surface finishes include anodizing, powder coating, and wood-grain transfer , with color options such as white, gray, black, and wood tones. Glass choices include clear, frosted, reeded (fluted), and Low-E glass to meet lighting, privacy, and insulation needs.
All production processes focus on indoor performance requirements such as sound insulation, durability, and appearance. Aluminum profiles are precisely cut and assembled using CNC processing to ensure tight joints and accurate alignment.
Surface treatments provide scratch resistance, corrosion protection, and color stability, suitable for dry indoor areas and mildly humid environments such as kitchens. Door frame and glass connections use an embedded slot structure combined with waterproof sealing for enhanced stability and dust resistance.
Hardware components—including hinges, tracks, and locks—are made from 304 stainless steel or premium aluminum alloy , offering excellent durability and refined appearance. Tempered glass undergoes high-temperature strengthening and breaks into blunt granules if damaged, ensuring user safety. Rounded corner processing further reduces safety risks, making the doors suitable for families with children or elderly users.
Durable & Long-Lasting: Aluminum alloy structure resists deformation, corrosion, and fading for extended indoor use
Effective Sound & Heat Insulation: Sealing systems and insulated glass enhance indoor comfort
Flexible & Stylish: Multiple opening types, glass styles, and finishes suit diverse interior designs
Safe & Reliable: Tempered glass, rounded edges, and high-quality hardware ensure daily safety
Easy Maintenance: Smooth aluminum and glass surfaces are easy to clean and require minimal upkeep
|
Item |
Aluminum Alloy Door |
Wooden Door |
PVC Door |
|
Durability |
Excellent, corrosion-resistant, long service life |
Moderate, prone to moisture damage |
Poor, easy aging and yellowing |
|
Sound & Thermal Insulation |
Good, sealed glass structure |
Good sound insulation, average thermal |
Average, weaker sealing |
|
Maintenance |
Low, easy to clean |
High, requires regular care |
Medium, parts age easily |
|
Design Flexibility |
High, customizable colors and glass |
Limited to specific styles |
Low, limited design options |
Q : Will interior aluminum alloy doors rust or fade?
A : No. Made of high-quality aluminum alloy with anodizing or powder coating, they feature excellent corrosion resistance. They will not rust or fade in daily indoor use, maintaining an attractive appearance for a long time.
Q : Are sliding aluminum alloy doors prone to jamming or abnormal noise?
A : Not under normal use. We use silent and wear-resistant tracks with buffer devices. The track surface is specially treated to reduce friction. Keep the tracks clean daily to avoid accumulation of hair or debris, and apply lubricant regularly to ensure smooth and silent sliding.
Q : Can they be customized to fit my doorway size and decoration style?
A : Yes. Full customization is supported, including doorway dimensions, opening styles (swing/sliding/folding), glass types (clear/frosted/rain-patterned, etc.), surface colors and finishes, ensuring a precise fit for different decoration styles and spatial layouts.
After installation, check hinge/track stability, sealing strip fit, and lock sensitivity. Lubricate hinges and tracks every six months.
Clean frames and glass with water or neutral detergent. Avoid corrosive cleaners.
Avoid strong impacts on door panels or glass. Prevent scratches on frosted or fluted glass.
Regularly inspect locks, hinges, and tracks. Clean or replace parts if looseness or noise occurs.
Ensure proper ventilation in humid environments to extend product lifespan.
We provide one-stop interior aluminum door solutions , covering design consultation, customization, production, and after-sales support.
Full customization: opening type, size, color, glass, hardware
Free technical consultation and design matching
Warranty: 2 years
After-Sales Support: Lifetime technical guidance and spare parts supply
Secure shock-resistant packaging and nationwide / overseas delivery