Explore our precision-manufactured double entry door systems, built to exceed international structural, wind-load, thermal, and acoustic standards.
In modern architectural design, the grand double entrance serves as both a primary aesthetic focal point and a critical structural envelope barrier. Achieving optimal thermal insulation, structural rigidity under wind pressure, and advanced security requires rigorous engineering across extrusions, core materials, and precision hardware.
Utilizing primary 6063-T5 and T6 architectural aluminum extrusions with wall thicknesses ranging from 2.0mm to 3.0mm. Reinforced internal steel framing prevents long-term sag and deflection across wide double-leaf spans up to 4.0 meters high.
Incorporating multi-chambered polyamide PA66-GF25 structural thermal barriers that eliminate thermal bridging. Paired with high-density polyurethane core infills, achieving U-values as low as 1.1 W/(m²·K) for energy-efficient envelope designs.
Engineered with 3D adjustable 500kg-rated stainless steel pivot hinges and German multi-point gearboxes. Anti-prying locking pins engage at multiple frame perimeter points, delivering superior burglary resistance (RC2/RC3 compliance).
Contemporary double entry doors require precise calculation of linear thermal expansion coefficients. Aluminum exhibits an expansion rate of approximately 23 × 10−&sup6; / K. Our double-door leaf designs integrate spring-loaded perimeter seals and floating thermal barrier joints that absorb thermal movement without jamming, maintaining weather integrity under extreme ambient temperature differentials (−30°C to +70°C).
Foshan, Guangdong represents the world's most concentrated ecosystem for aluminum metallurgy, precision CNC tooling, and surface treatment technology. Sourcing directly from top-tier Foshan factories unlocks unparalleled manufacturing advantages:
As luxury residential developments and commercial headquarters demand larger openings and higher energy performance, five key technical trends drive contemporary double entry door manufacturing.
Invisible integration of biometric fingerprint scanners, facial recognition cameras, and smart home automation protocol (Zigbee/Z-Wave) motors within the lock stile, eliminating ugly surface hardware.
Minimizing profile frame sightlines to under 45mm while utilizing structural bonding tapes (VHB) and heavy-duty floor pivot systems to support single leaf weights up to 400kg effortlessly.
Laminated impact glass (1.52mm SGP interlayer) combined with heavy cast-aluminum panel overlays to withstand flying debris and wind velocities exceeding 250 km/h (Category 5 hurricane ratings).
Using multi-density EPDM gaskets and asymmetric double-glazed insulating units (e.g., 8mm + 12A + 6mm) to cut urban noise pollution down by up to 45 decibels.
Zero-VOC Qualicoat Class 2 certified surface coatings that resist salt-spray corrosion, UV fading, and industrial pollutants for decades without chalking or cracking.
Replicating authentic walnut, oak, and teak timber textures on aluminum surfaces, offering rich warm aesthetics without timber warping, swelling, or maintenance headaches.
Different geographic regions demand specialized structural and thermal engineering. DERCHI custom contemporary double entry doors are engineered specifically for localized microclimates.
High-velocity hurricane zones (such as Florida, Texas, and coastal California) require strict compliance with Miami-Dade and NFRC certifications. Our double entry doors incorporate heavy gauge extruded sub-frames, stainless steel anchoring brackets, and 12mm+1.52SGP+12mm impact glass tested to resist 200 mph missile impacts.
Extreme heat cycles (+50°C ambient temperatures) and fine sand dust demand multi-layered silicone EPDM seals and double thermal break profiles. Special solar-reflective coatings prevent panel expansion, maintaining smooth latching and air-tight seal integrity year-round.
Focusing on high thermal performance (U-values < 1.0 W/(m²·K)) to satisfy strict EN 14351-1 building energy standards. Includes PAS 24 anti-burglary multi-point locking gearboxes and minimalist modern aesthetic options suited for luxury villa developments and urban renovations.
Fully compliant with AS2047 and AS1288 structural wind pressure, water penetration, and glazing standards. Marine-grade anodized or PVDF surface finishes protect aluminum against intense UV exposure and aggressive salt-spray atmospheric corrosion.
Compare physical characteristics, thermal resistance ratings, and architectural applications across our four core manufacturing product platforms.
| Platform Type | Material Core Build-Up | Thermal U-Value | Wind Load Rating | Acoustic Isolation | Primary Application |
|---|---|---|---|---|---|
| Thermally Broken Aluminum Double Door | 6063-T5 aluminum, PA66-GF25 thermal bridge, PU foam core | 1.1 – 1.6 W/(m²·K) | Up to 5,000 Pa (AS2047 N6) | 38 – 42 dB | Modern Luxury Villas, Coastal Estates |
| Cast Aluminum Villa Double Entry Door | 8mm-12mm solid sand-cast relief panels, steel sub-frame core | 1.4 – 1.8 W/(m²·K) | Up to 4,200 Pa | 35 – 40 dB | Grand Manor Entrances, Private Gated Villas |
| Glass Heavy Duty Pivot Double Door | Slim aluminum perimeter frame, 42mm Low-E insulated glass unit | 1.2 – 1.7 W/(m²·K) | Up to 3,500 Pa | 36 – 44 dB | Commercial Lobbies, Architectural Showrooms |
| Armored Stainless Steel Entry Door | SUS304/SUS316 stainless skins, multi-layer anti-drill alloy core | 1.5 – 2.0 W/(m²·K) | Up to 4,500 Pa | 40 – 45 dB | High-Security Residence, Bank Vaults, Executive Offices |
Discover our comprehensive collection of custom engineered double doors, pivot systems, and stainless steel security entrances.
From digital shop drawing validation to ocean freight container optimization, DERCHI implements a transparent 5-stage procurement workflow designed specifically for developers, contractors, and architectural importers.
Our in-house design office produces complete 2D CAD shop drawings and 3D BIM Revit objects matching your precise opening schedule numbers within 48 hours of initial inquiry.
Every custom double door undergoes raw material spectrographic check, CNC machining dimensional verification, powder coat thickness test, pre-assembly latch test, and water penetration spray testing.
Door leaves are encased in protective PE film, corner-guarded with high-density EPE foam, packed in 5-layer corrugated boxes, and locked inside IPPC fumigation-free plywood crates for zero-damage transport.
Get clear technical answers regarding certifications, lead times, dimensions, and custom engineering options direct from our factory engineering team.
Our standard double entry door system accommodates total frame widths up to 2,400mm and heights up to 3,500mm. For oversized luxury villa entrances or commercial lobbies, we manufacture structural pivot double doors with combined widths up to 4,000mm and overall height up to 5,000mm using steel-reinforced aluminum cores and heavy-duty floor pivot hinges rated up to 600kg per leaf.
We utilize high-tensile 6063-T6 aluminum alloy extrusions with minimum wall thickness of 2.5mm to 3.0mm, coupled with DuPont SGP (SentryGlas Plus) structural laminated glass (e.g., 6mm tempered + 1.52mm SGP + 6mm tempered). The frame is anchored using heavy-duty stainless steel sleeve anchors and reinforced multi-point deadbolts that withstand positive and negative wind pressures up to 5,000 Pa (equivalent to Category 5 hurricane wind velocity).
Our manufacturing facility is ISO 9001:2015 certified. Our product lines hold verified test reports and certifications including CE marking (EN 14351-1) for the European Union, AS2047 / AS1288 certification for Australia, NFRC thermal performance ratings for North America, and Florida HVHZ (High-Velocity Hurricane Zone) structural missile impact approval. All test reports are provided directly with quote packages.
Drawing confirmation and CAD shop drawing approval take 3 to 5 business days. Sample units require 12 to 18 days. Bulk project production is completed within 25 to 35 days, depending on specified surface finishes (e.g., custom RAL powder coat, PVDF, or Italian wood grain transfer). Ocean transport typically ranges from 14 to 28 days depending on the destination port (e.g., US West Coast, Melbourne, Hamburg, or Dubai).
Yes. We offer fully integrated motorized smart locking gearboxes (such as GU, Winkhaus, or Kaba) that hide wiring and sensors inside the aluminum door stile profile. Smart entry supports biometric fingerprint recognition, 3D facial recognition, RFID card access, mobile app control (Tuya / Smart Life / Apple HomeKit), and mechanical key override for emergency backup.
Each door leaf is pre-assembled and inspected, then cleaned and wrapped in anti-scratch protective PE film. Edge guard cushions made of EPE shock-absorbent foam protect corners. The doors are encased in heavy-duty double-wall cartons, loaded into custom fumigation-free solid plywood crates, and secured with steel strapping. Historical transit damage rates remain strictly below 0.2% across global shipments.
