Explore our premium range of factory-tested, certified aluminum smart lock doors, hurricane-resistant impact glass panels, and energy-efficient architectural solutions tailored for global distributors and developers.
Grandex Door Solutions Co., Ltd. combines heavy-duty thermal break aluminum extrusions with military-grade smart lock technology, serving premier global real estate and commercial projects.
Established in 2014, Grandex Door Solutions Co., Ltd. is a premier entry door manufacturer operating from a modern 35,000 m² facility. With 16 years of industry expertise and 8 years of dedicated export experience, the company generates an annual export revenue of USD 28 million. Grounded in strong OEM and ODM trade backgrounds, our products primarily serve North America and Western Europe, supported by a network of over 1,200 supply chain partners. We cater to leading building material distributors, real estate developers, and commercial contractors. Quality is integral to our operations: supported by strict ISO 9001 certified internal testing and third-party laboratory verification, our 45-member QA team ensures rigorous quality control throughout production. Driven by an active R&D division with 85 specialized engineers, we introduced 120 new door designs last year and offer full custom solutions spanning custom dimensions, security locks, surface finishes, and decorative glass panels.
Our ISO 9001 certified manufacturing plant utilizes fully automated German and Italian CNC milling, double-head high-precision cutting, and smart sorting lines to guarantee millimeter-level tolerance for smart lock mortise integration.
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Semi-finished products inspection
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Analyzing global architecture trends, smart city integration, and strict building compliance across North America, Europe, and Australia.
In North America, commercial and high-end residential real estate developments require rigorous compliance with local structural and energy preservation codes. Grandex engineered entry doors undergo strict testing under National Fenestration Rating Council (NFRC) guidelines for U-factor thermal performance, Solar Heat Gain Coefficient (SHGC), and air leakage. Furthermore, our coastal hurricane-proof series holds Florida Product Approval (FPA) and Miami-Dade NOA certification, withstanding extreme windborne debris impact tests (ASTM E1886/E1996) and cyclic wind pressure pressures exceeding +/- 70 PSF.
The European market demands strict eco-efficiency and acoustic barrier isolation alongside burglar resistance (RC2 to RC4 security standards according to EN 1627). Grandex integrates multi-chambered polyamide thermal break extrusions (PA66GF25) combined with triple-pane Low-E insulated glass units (IGUs) filled with 90% Argon gas. Our custom smart locks integrate seamlessly with EN 12209 mechanical lock mortise standards, offering multi-point motorized locking bolts compatible with European profile cylinders.
Australia’s harsh climatic variations demand exceptional UV resistance, water penetration control, and structural integrity under AS2047 (Windows and doors in buildings) and AS1288 (Glass in buildings). Grandex entry doors utilize marine-grade 6063-T6 aluminum alloys treated with Qualicoat Class 2 powder coatings and AkzoNobel fluorocarbon (PVDF) finishes, ensuring zero oxidation, color fade, or coastal saltwater degradation over decades of exposure.
All customizable smart entry doors are verified through certified third-party testing labs before export shipment:
| Performance Indicator | Standard Compliance | Grandex Achieved Metric | B2B Advantage |
|---|---|---|---|
| Structural Wind Load | ASTM E330 / AS2047 | Up to 5000 Pa (Design Pressure 75 PSF) | Suitable for high-rise towers & hurricane zones |
| Thermal Insulation (U-Factor) | NFRC 100 / ISO 10077 | U ≤ 0.24 Btu/h·ft²·°F (1.36 W/m²K) | Maximized LEED points & energy rebates |
| Acoustic Soundproofing | ASTM E90 / ISO 140-3 | STC 42 dB / OITC 36 dB | Ideal for urban luxury hotels & apartments |
| Water Penetration Resistance | ASTM E331 / BS EN 12208 | 750 Pa (Static Water Resistance) | Zero leakage under torrential storm conditions |
| Smart Lock Mechanical Cycles | ANSI/BHMA A156.13 Grade 1 | > 1,000,000 operational cycles | High-traffic commercial hospitality durability |
Bridging physical structural security with cutting-edge IoT edge computing, AI biometric validation, and universal smart home interoperability.
Grandex is pioneering next-generation biometric access control built directly into custom door stiles. Our dual-camera 3D structured light facial recognition modules map over 30,000 infrared dots on the human face, providing spoof-proof validation (< 0.0001% False Acceptance Rate) even in total darkness. Additionally, contactless palm vein sensing detects subcutaneous blood vessel patterns, rendering physical key duplication completely obsolete.
Modern architectural entry doors must operate seamlessly within whole-home automation networks. Our smart lock microcontrollers feature native support for Matter 1.2, Apple HomeKit, Google Home, Amazon Alexa, and Control4. Through encrypted AES-128 and ECC security chips, property owners can monitor live access logs, grant temporary dynamic OTP guest codes, and automate entry scene lighting directly from centralized building management systems (BMS).
To ensure 100% operational uptime during grid blackouts or severe winter storms, Grandex Smart Entry Doors incorporate a dual redundancy power architecture. Primary power utilizes high-density rechargeable LiFePO4 battery banks yielding up to 18 months of lifespan. In emergency scenarios, secondary hidden USB-C emergency powering ports and mechanical C-class anti-drill key overrides guarantee entry without compromising physical security.
Custom-manufactured smart door solutions designed for ultra-luxury residential villas, coastal hurricane zones, commercial complexes, and modern boutique hotels.
Architects designing high-end custom residences require grand entrance statements without sacrificing safety. Grandex custom pivot doors up to 3.5 meters in height feature concealed heavy-duty German hydraulic floor springs (supporting up to 500 kg sash weight) and seamlessly embedded smart lock handles. Concealed wiring channels inside the extruded aluminum frame maintain a minimalist glass-and-metal aesthetic while feeding constant power to biometric sensors.
For coastal properties in Florida, the Caribbean, and coastal Australia exposed to severe tropical storms, entry doors must withstand extreme wind forces and air pressure differentials. Our Miami-Dade NOA certified smart entry doors utilize heavy-wall 6063-T6 aluminum profiles coupled with SentryGlas® (SGP) laminated safety glass. The smart mortise features 5-point motorized stainless steel deadbolts that automatically engage upon closure, locking the door panel rigidly into structural jamb anchors.
For multi-unit developments, real estate managers require centralized permission control and zero physical key distribution costs. Grandex OEM custom smart lock doors feature RFID card reading, BLE app unlock, dynamic QR codes, and cloud-synchronized access management software. High-traffic commercial duty components guarantee over 1,000,000 unlock cycles with minimal maintenance downtime.
Leveraging deep industrial cluster integration, advanced automation, and raw material sovereignty to deliver unbeatable OEM value and lead times.
Situated at the center of China's top architectural aluminum hardware cluster, Grandex maintains direct raw ingot supply partnerships. This guarantees direct cost savings of 15-20% on raw 6063-T5/T6 billet extrusions compared to European processors, passing direct margin advantages to B2B distributors.
With over 1,200 specialized vendor partners covering anodic oxidation, PVD titanium plating, smart PCB micro-soldering, and tempered safety glass laminating, we assemble complex custom configurations with unprecedented speed.
Our dedicated team of 85 structural and electronic engineers turns architectural CAD drawings into fully functional 1:1 scale test prototypes within 7 to 10 working days, significantly shortening project development cycles for contractors.
Every single entry door sash and smart mortise undergoes rigorous multi-stage checks: raw material spectral analysis, CNC milling tolerance check, salt spray corrosion testing (1000 hrs), water-tightness chamber testing, and 100% smart lock electronic burn-in.
Providing total end-to-end B2B solutions from architectural drawing shop submittals to customized white-label packaging and international site compliance guidance.
We provide comprehensive OEM customization. Clients can request tailored aluminum profile extrusions, thermal break widths (24mm to 34mm PA66), structural glass options (double/triple pane Low-E, reflective, dynamic smart electrochromic glass), and custom powder coat colors matching RAL palettes.
For brand owners and distributors, we offer complete white-label OEM branding: laser-engraved corporate logos on smart lock handles, custom-printed protective film layers, and personalized hardware packaging boxes. Furthermore, our IoT engineering team provides full Mobile App SDKs and API documentation to integrate our smart doors into your proprietary smartphone application.
With 8 years of specialized international export experience generating USD 28M annually, our logistics division seamlessly manages DDP, FOB, and CIF maritime freight routes. We provide complete documentation including NFRC test reports, Miami-Dade NOA submittals, AS2047 test certificates, and ISO 9001 compliance sheets to accelerate customs clearance.
Addressing core technical questions from real estate developers, building material wholesalers, and engineering contractors.
Answer: Unlike retrofitted smart locks that compromise structural weather seals, Grandex smart entry doors feature factory-integrated electronic mortises recessed into thermal break aluminum profiles. Continuous dual-component EPDM gasketing surrounds the lock pocket, preventing air infiltration and moisture penetration. The electronic housing is IP65 rated against driving rain and dust intrusion, tested under ASTM E331 water penetration protocols up to 750 Pa pressure.
Answer: Yes, absolutely. Supported by an 85-member R&D engineering team, Grandex specializes in full OEM/ODM manufacturing. We produce custom door sizes up to 3.5m in height and 1.8m panel width for pivot designs. Lock mortises can be customized to accept Euro-profile cylinders, ANSI Grade 1 heavy-duty latches, or specialized multi-point locking rods, finished in custom anodized, PVDF coating, or wood-grain transfer textures.
Answer: Our hurricane-impact door series holds official Florida Product Approval (FPA), Miami-Dade NOA certification, NFRC thermal ratings, and Australian AS2047 compliance. We utilize laminated impact safety glass with 1.52mm or 2.28mm Kuraray SentryGlas® (SGP) interlayers and extruded 6063-T6 heavy-duty structural aluminum profiles designed to withstand high-velocity hurricane impact zone (HVHZ) requirements.
Answer: For custom engineering prototype samples, our lead time is 7 to 12 working days. Standard mass production container orders (20GP / 40HQ) are delivered within 25 to 35 calendar days following drawing confirmation. Our 35,000 m² facility operates optimized automated CNC milling and intelligent sorting lines to guarantee strict schedule adherence.
Answer: Our smart entry doors are designed with multi-tier emergency access redundancies. First, low-battery warning alerts sound when capacity drops below 20%. If power depletes entirely, users can utilize an external hidden USB-C emergency power bridge to temporarily energize the biometric panel. Additionally, every unit includes high-security physical C-class mechanical keys for manual override.
Answer: Our 45-member QA department enforces strict ISO 9001 quality gates. Every order undergoes semi-finished product structural inspection, surface coating thickness measurement, 100% electronic smart lock operation testing, and full structural mockup assembly. We welcome third-party inspection agencies (SGS, TÜV, Intertek) prior to container loading and supply comprehensive video audit reports.
Explore our complete engineering catalog, including tilt-turn acoustic windows, single-hung vertical sliders, commercial impact patio doors, and custom arch glass assemblies.
Grandex Door