Factory-direct engineered entry door systems compliant with global building codes (CE, AS2047 N6, UL 10C, Florida Product Approval). Fully customizable in dimension, core material, glazing, thermal breaks, and biometric access.
Engineered with solid Teak/Oak timber backed by an internal steel anti-warping core. Features floor-concealed heavy-duty pivot hinges supporting sashes up to 500 kg.
Contact Us
Multi-material hybrid door uniting weather-resistant extruded T6063-T6 aluminum frames, interior timber cladding, double toughened insulated glass, and RC3 anti-theft deadbolts.
Contact Us
Ultra-slim matte black cold-rolled steel profile framework integrated with polyamide thermal break strips (PA66GF25) and Argon-filled Low-E glass units for maximum daylight and acoustic isolation.
Contact Us
Miami-Dade & Florida Product Approval compliant impact-resistant entrance door. Constructed with 12.76mm SentryGlas® laminated safety glass to withstand extreme coastal hurricane cycles.
Contact Us
High-security entry system featuring factory-integrated 3D facial recognition, biometric fingerprint access, motorized multi-point deadlocking gear, and heavy-gauge anti-drill reinforced steel plates.
Contact Us
Architectural grand-scale entrance pivot door reaching up to 3000mm in width and 6000mm in height. Outfitted with automatic drop-down bottom weather seals and custom smart locking integrations.
Contact Us
UL 10C & BS 476 certified 180-minute fire-rated emergency entrance door system. Built with high-density mineral wool core insulation ($110\text{ kg/m}^3$) and heavy-duty panic push bar hardware.
Contact Us
Commercial grade solid Teak/Oak exterior door engineered with traditional mortise-and-tenon craftsmanship combined with modern UV-inhibiting PVDF clear lacquers for high-traffic entrances.
Contact UsIn modern high-end architectural developments, the main entrance door has evolved from a simple access barrier into a highly complex, structural envelope component. Architects, property developers, and overseas procurement managers face rigorous performance criteria—ranging from dynamic structural wind load deflection limits (Finite Element Analysis $L/175$) to acoustic attenuation and smart access protocols.
As a primary OEM/ODM manufacturer headquartered in Foshan, China—Guangdong Derki Doors & Windows Technology Co., Ltd. operates at the nexus of high-precision CNC manufacturing and global building code compliance. This technical whitepaper establishes the foundational engineering guidelines required to specify, custom-fabricate, and import high-performance entrance door systems for multi-family residential, luxury private villas, and commercial real estate assets globally.
Standard hinged doors struggle when sash widths exceed 1200mm due to gravitational leverage causing frame sagging and latch misalignment. Large pivot doors mitigate this by shifting the axis of rotation inward (typically 150mm to 300mm from the jamb). However, oversized openings introduce severe wind load vulnerabilities and dead-weight stresses:
For global exports targeting cold northern climates (North America, Northern Europe) or extreme desert heat (Middle East), thermal bridging across metal entrance doors must be isolated. Modern OEM/ODM solutions integrate:
Analysis of global architectural procurement patterns reveals a shifting baseline. Buyers are moving away from standardized off-the-shelf commodities toward fully integrated, custom-engineered entryway solutions.
Architectural designs increasingly favor ceiling-height entryways (3.5m to 6.0m heights). Sourcing managers are seeking single-source manufacturers capable of casting, extruding, and machining single-leaf pivot doors without visible horizontal structural joints or seam lines.
The integration of smart access control has transitioned from aftermarket additions to factory-embedded OEM solutions. Modern requirements mandate pre-wired internal raceways, 3D facial recognition scanners, hidden fingerprint sensors, keypads, and motorized multi-point locks compatible with home automation systems (Zigbee, Matter, Crestron).
Global climate shifts are driving demand for certified resilience. Sourcing specifications now mandate AAMA 2605-compliant PVDF fluoropolymer surface coatings (resisting salt spray for >4,000 hours) and structural certification for hurricane zones (Florida Miami-Dade NOA, Australian AS2047 N6 rating).
Combining a 180,000 m² modern production base with 25+ years of specialized engineering pedigree, DERKI delivers end-to-end OEM/ODM manufacturing solutions tailored to international supply chains.
From aluminum alloy billet extrusion, CNC precision machining, thermal break crimping, cast-aluminum mold fabrication, to PVDF coating and final hardware assembly—all processes are controlled under ISO 9001:2015 certified protocols within our Foshan facility.
Pass building inspections effortless anywhere in the world. Our doors hold verified certificates for CE (EN 14351-1), AS2047 (N6 cyclone rating), UL 10C (3-Hour Fire Rating), ISO 9001, FCC, and RoHS, complete with full structural test submittal packages.
Eliminate miscommunication and site rework. Our 50+ in-house structural engineers prepare free 2D shop drawings (AutoCAD) and 3D BIM models based on your architectural elevation schedules within 24 to 48 hours of inquiry.
Use this technical specification guide to evaluate frame materials, structural limits, thermal ratings, and ideal architectural applications.
| Material System | Max Leaf Dimensions (W x H) | Thermal Transmittance ($U$-value) | Acoustic Rating (STC) | Wind Resistance Rating | Primary Application Focus |
|---|---|---|---|---|---|
| Extruded Aluminum (6063-T6) | 3000 mm x 6000 mm | $1.1 \sim 1.5 \text{ W/m}^2\text{K}$ | STC 38 - 42 dB | AS2047 N6 / ASTM E330 (6000 Pa) | Contemporary Luxury Villas, Oversized Pivot Doors |
| Cast Aluminum (Solid 8-12mm) | 2400 mm x 5000 mm | $1.4 \sim 1.8 \text{ W/m}^2\text{K}$ | STC 40 - 45 dB | Heavy Blast & Forced Entry Resistant | Classical Estates, High-Security Main Gates |
| Cold-Rolled Steel Frame | 2200 mm x 4000 mm | $1.3 \sim 1.7 \text{ W/m}^2\text{K}$ | STC 36 - 40 dB | High Structural Rigidity / UL Fire Rated | Industrial Loft French Doors, UL Fire Exits |
| Solid Teak / Oak Hardwood | 1800 mm x 3500 mm | $1.2 \sim 1.6 \text{ W/m}^2\text{K}$ | STC 42 - 46 dB | DP 50 (with Steel Core Reinforcement) | Luxury Private Residences, Heritage Hotels |
In-depth answers addressing structural engineering, certification compliance, shipping logistics, and custom OEM/ODM workflows.
Pivot doors are inherently more challenging to seal than traditional rebate hinged doors because the axis of rotation swings both inward and outward at the pivot point. To achieve high water-tightness (Pass 450 Pa ~ 600 Pa test pressures), DERKI utilizes a dual-defense system: (1) Concealed hydraulic drop-down bottom seals that automatically actuate via spring plungers when the door closes, pressing an EPDM gasket tightly against a recessed floor track. (2) Perimeter magnetic rubber weather-stripping that creates a continuous airtight seal around the top and side jambs, effectively blocking wind-driven rain.
For heavy structural leaves (cast aluminum or solid timber with internal steel box sections), standard butt hinges or light-duty floor springs will fail prematurely. We specify heavy-duty floor-recessed pivot systems from top-tier brands (e.g., German Dormakaba BTS80, FritsJurgens System M+, or DERKI heavy-duty floor pivots). These systems are rated for door weights up to 500 kg – 1000 kg, offering 3D spatial alignment (fine-tuning vertical, lateral, and depth clearance by ±5mm), adjustable hydraulic closing speeds, and hold-open angles at 90° and 180°.
We supply complete technical submittal packages for architectural approval and local building inspections. Available documentation includes: CE Mark (EN 14351-1) for European markets; AS2047 (N6 rating) & AS1288 for Australian wind pressure and safety glass compliance; UL 10C / NFPA 252 (20-min to 3-hour fire ratings) for North America; and Florida Product Approval / Miami-Dade NOA test reports for hurricane impact resistance (ASTM E1886/E1996).
Our standardized 6-step engineering workflow ensures 100% precision: (1) Schedule & Elevation Review: Send us your architectural door schedule or CAD drawings. (2) Shop Drawing Generation: Our engineering team returns free detailed CAD shop drawings within 24-48 hours. (3) Material & Hardware Sign-Off: You confirm profile sections, finish colors (RAL palette), glass makeup, and lock hardware. (4) Precision Fabrication: Profiles are CNC machined, welded/assembled, and powder coated. (5) Trial Pre-Assembly & QC: Every door is fully assembled in our factory to test swing clearances and locking action. (6) Export Packaging: Products are sealed in protective film, fitted with corner armor, and packed in fumigated plywood crates.
For coastal or high-humidity tropical environments (e.g., Caribbean, Florida, Pacific Islands, Middle East), standard powder coating can chalk or blister under intense salt fog and UV radiation. We recommend AAMA 2605 compliant PVDF (Polyvinylidene Fluoride) 3-coat fluoropolymer spray finishes or Class 1 Architectural Anodizing (25-micron thickness). These treatments withstand salt spray testing (ASTM B117) for over 4,000 hours without color fading or film degradation.
Yes. We regularly pre-engineer door leaves with internal wiring raceways, electric power transfer hinges (EPT), and CNC-milled mortise pockets to seamlessly integrate smart access hardware. We support factory-installed 3D facial recognition cameras, hidden capacitive fingerprint sensors, RFID keypads, and motorized multi-point locks (such as GU-Secury Automatic or KFV electronic locks). These systems connect directly to home automation networks or access control relays.
Overseas logistics require robust protective packaging. Each door leaf undergoes a multi-layer wrapping process: (1) Surface protective scratch-resistant film. (2) Heavy-duty polyethylene foam edge and corner guards. (3) Double-wall corrugated wrapping. (4) Fully enclosed, custom-built fumigated solid plywood export crates with interior foam bracing and steel banding straps. Glass units are packed separately or structurally pre-installed using structural silicone (DOWSIL 995) to prevent flex failure inside the container.
Standard hollow core or non-sealed entrance doors yield low acoustic attenuation (~STC 20-25 dB), letting ambient street noise penetrate the building. By combining dense core materials (solid hardwood, cast aluminum with rockwool infill, or laminated glass) with double-rebound perimeter EPDM gaskets and drop seals, DERKI entrance doors achieve certified sound transmission ratings of STC 38 dB to STC 45 dB, significantly reducing high and low-frequency noise.
Submit your door schedules, architectural elevations, or procurement specifications today. Our engineering team will provide free CAD shop drawings, technical consultation, and factory-direct wholesale estimates within 24 hours.
Contact Us