Casement Series
Engineered Portfolio
High-Performance Aluminum Double & Architectural Door Systems
Explore our certified aluminum double entry, storefront, and folding systems designed for residential estates, coastal developments, and high-traffic commercial facades.
Hurricane Proof
Triple Glazed
Interior Hospitality
Multi-Track Bifold
Eco Thermal
Heavy Storefront
German Hardware
Manufacturing Authority
Why Tier-1 Contractors and Global Importers Rely on DERCHI
Operating from Foshan, the aluminum extrusion and door capital of the world, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) combines industrial-scale fabrication with millimeter-grade OEM/ODM customization.
25+
Years Engineering Expertise
180,000㎡
Integrated Production Hub
600+
Certified Craftspeople & QC
100+
Global Patents & Testing Marks
One-Stop Architectural Envelope Fabrication
Unlike assembly workshops, our 180,000㎡ smart manufacturing base handles profile precision extrusion, CNC milling, thermal break polyamide insertion, multi-layer fluorocarbon spray coating, and robotic glass sealing under one roof.
We supply verified global standards compliant with CE, ISO9001, AS2047, and UL fire-rated standards. Every double door assembly undergoes pre-shipping dry fits, corner torque validation, air permeability, and wind-pressure resistance testing prior to sea-crated dispatch.
AS2047 & CE Certified
Our aluminum double doors are tested to resist coastal water penetration up to 700 Pa and extreme cyclonic wind gusts up to 4500 Pa (N6 Level rating).
- Air-tightness: Grade 8 standard
- Water-tightness: 450Pa–700Pa
- Acoustic insulation: STC up to 42dB
Full OEM/ODM Versatility
Complete flexibility in dual-leaf pivot doors, French patio doors, sliding double bypass setups, and automated thermal storefront configurations.
- Free CAD shop drawings & BIM objects
- Custom architectural profiles (6063-T6)
- Bespoke hardware integration
Consolidated Procurement
Cut landed shipping costs by bundling aluminum double entrance doors, interior soundproof glass doors, and garage door modules into full container loads.
- Single point of engineering contact
- Zero split-shipment damages
- Customs-compliant document packages
Marine-Grade Finishes
Formulated for high-salinity coastal resorts in South America, Florida, and Southeast Asia utilizing Qualicoat-certified fluorocarbon (PVDF) layers.
- 30-year anti-fading warranty
- AkzoNobel & Tiger powder finishes
- Anodized Class 15 corrosion defense
Engineering Data Sheet
Aluminum Double Door Specifications for Specifiers & Architects
Direct comparison of OEM structural alloys, thermal isolation configurations, and locking hardware designed to meet strict commercial building codes.
| System Category | Alloy Profile Thickness | Thermal Barrier (PA66 GF25) | Glazing Specification | Hardware & Hinge Load | Thermal Transmittance (U-Value) |
|---|---|---|---|---|---|
| Heavy Duty French Double Doors | 2.0mm – 3.0mm (6063-T5 / T6) | 24mm – 34mm Technoform Strip | 5mm+12Ar+5mm Low-E Tempered | German Siegenia / 180kg per leaf | 1.4 – 1.8 W/m²K |
| Hurricane Impact Double Doors | 3.0mm Structural Grade | Reinforced Multi-Cavity Barrier | 6mm+1.52PVB/Sentry+6mm Laminated | Heavy-Duty Stainless 304 / 300kg | 1.6 – 2.0 W/m²K (DP70 Rated) |
| Commercial Storefront Dual Leaves | 2.5mm – 4.0mm High Traffic | Standard Non-Thermal or 14mm Break | 8mm / 10mm / 12mm Monolithic or IGU | Concealed Overhead Dorma Closer | 2.2 – 2.8 W/m²K |
| Minimalist Slimline Double Pivot | 2.5mm Ultra-Slim Sightline | Concealed Vertical Thermal Break | Double or Triple Glazed Toughened | Hydraulic Pivot Box / 500kg Load | 1.2 – 1.5 W/m²K |
Market Intelligence
Future Sourcing & Procurement Trends for Aluminum Double Doors
How decarbonization targets, seismic and hurricane building mandates, and smart building automation are reshaping the OEM/ODM manufacturing landscape for 2026–2030.
1. Near-Zero Energy & Decarbonization Mandates
Global regulatory bodies (such as the EU Energy Performance of Buildings Directive and US ASHRAE 90.1) are enforcing strict limits on building envelope heat loss. Double door procurement is moving rapidly toward:
- Multi-chamber polyamide isolators exceeding 34mm
- Warm-edge silicone spacers with argon/krypton inert fills
- Recycled 'Green Aluminum' smelted via hydroelectric power
- Whole-system U-values falling below 1.1 W/m²K
2. IoT Access Control & Concealed Motorization
Modern luxury villas and Class-A commercial towers no longer accept bulky surface-mounted hardware. Sourcing specifications now mandate integrated smart building infrastructure:
- Invisible electro-mechanical multipoint locks
- Integrated facial recognition and biometric sensors in stiles
- Concealed motorized actuators synced to smart home hubs
- Integrated reed contacts for alarm and automation sensing
3. Oversized Openings & Ultra-Narrow Sightlines
Architects demand ceiling-height double doors up to 4.5 meters in height while simultaneously shrinking visible aluminum frames down to under 25mm:
- Aerospace-grade internal steel reinforcing cores
- Continuous heavy-duty ball-bearing concealed pivots
- Floor-flush zero-barrier threshold drain systems
- Large glass lites providing uninterrupted panoramic views
Procurement Guide
Frequently Asked Questions on Sourcing OEM/ODM Aluminum Double Doors
Clear, technical, and commercial answers to assist architects, procurement heads, and overseas distributors.
What is the difference between OEM and ODM double door fabrication at DERCHI?
OEM (Original Equipment Manufacturer) service means we fabricate doors strictly based on your proprietary architectural drawings, die designs, and hardware schedules, branding them under your corporate label. ODM (Original Design Manufacturer) allows you to choose from our existing proprietary, pre-engineered high-performance door systems, which we customize in dimensions, finishes, glass types, and hardware configurations to meet your project specifications quickly without the high cost of new extrusion dies.
How do you ensure structural wind-load performance for oversized double doors?
Every oversized double door order is analyzed by our structural engineering department. We evaluate local site conditions (wind zone, building elevation, exposure category) and conduct finite element analysis on the central mullion and door meeting rails. Where necessary, we insert galvanized structural steel reinforcements or 6061-T6 aluminum cores inside the extrusion chambers to resist dynamic wind pressures in excess of 4500 Pa (N6 Cyclonic rating), preventing deflection and air leakage.
What surface treatment is recommended for coastal or high-salinity marine environments?
For coastal projects in regions such as Florida, the Caribbean, coastal Brazil, or Australia, we strictly recommend PVDF (polyvinylidene fluoride) fluorocarbon coatings or marine-grade seaside powder coatings conforming to Qualicoat Class 2 standards. These finishes withstand over 3,000 hours of continuous neutral salt spray testing without blistering, chalking, or fading, backed by a 20-to-30 year anti-degradation warranty.
What are your standard export packaging standards to eliminate maritime transit damage?
Overseas shipments endure severe motion and temperature fluctuations during ocean voyages. DERCHI protects every door through a 5-tier packaging protocol: (1) protective scratch-proof film over all exposed metal profiles; (2) high-density foam corner protectors; (3) fully sealed bubble-wrap moisture isolation; (4) corrugated honeycomb protective sheathing; and (5) ISPM-15 fumigation-free solid plywood crates. We also place desiccants in every crate to prevent condensation and moisture stains.
Can you manufacture aluminum double doors compatible with US ADA and European emergency exit standards?
Yes. For commercial storefront and public venue double door projects, we supply ADA-compliant low-profile thresholds (under 1/2 inch) with sloped ramps to allow wheelchair passage. Furthermore, our systems integrate easily with UL-listed or CE-marked emergency panic exit push bars, rim latch devices, and magnetic fire-alarm interlocks.
What is your typical production lead time and minimum order quantity (MOQ)?
Standard OEM/ODM orders have an MOQ of 1 project set or 20 square meters, allowing architects and builders to order customized sample units or project prototypes. Production lead times typically run 25 to 35 business days from final CAD shop drawing sign-off. For customized extrusion profiles requiring new dies, allow an additional 10 to 14 days for die manufacturing and extrusion verification.
Partner with China's Premier Door Engineering Factory
Whether you require standard container-load wholesale supplies or bespoke double door systems for luxury estates, our 180,000㎡ factory provides free CAD drawings, factory-direct wholesale pricing, and verified international testing data.