Explore our top-tier certified entry solutions featuring intelligent biometric access controls, Miami-Dade NOA impact glass, and thermal break extrusion profiles.
Delivering end-to-end engineered aluminum door solutions engineered for structural longevity, environmental resistance, and rigorous global compliance.
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.
Understanding regional code compliance is essential for commercial developers and B2B buyers. Grandex engineered hinged doors undergo rigorous third-party physical testing to ensure complete alignment with international fenestration mandates.
Our hurricane-impact aluminum hinged doors carry official Miami-Dade NOA (Notice of Acceptance) and Florida Building Code (FBC) approvals. Built to withstand missile impact testing (TAS 201/202/203 protocols) and static air pressure tests exceeding +90/-90 PSF, these assemblies prevent structural breach under Category 5 hurricane stress conditions.
Certified under the National Fenestration Rating Council (NFRC), our thermal break hinged door profiles achieve exceptional U-Factors down to 0.24 BTU/h·ft²·°F and Low Solar Heat Gain Coefficients (SHGC). Integrated warm-edge spacers and double/triple Low-E insulating glass units minimize HVAC operational costs in high-density installations.
Designed for Australian and New Zealand environmental conditions, Grandex hinged doors meet AS2047 and CodeMark compliance. Structural deflection, air infiltration (AS4420.4), and water penetration resistance (AS4420.5 up to 450Pa) are independently verified for demanding coastal and commercial installations.
| Certification standard | Target Region | Key Testing Parameters | Structural Profile Material | Typical B2B Application |
|---|---|---|---|---|
| Miami-Dade NOA / FBC | North America (Coastal HVHZ) | TAS 201 Large Missile Impact, TAS 202 Cyclic Load (+90/-90 PSF) | Architectural 6063-T6 Structural Alloy (2.0mm+ Wall) | Seaside Prefabricated Homes, Oceanfront Resort Villas |
| NFRC / Energy Star | United States & Canada | ASTM E283 Air Leakage, Thermal Transmittance (U-Factor ≤ 0.26) | Polyamide PA66 Thermal Break Extrusions | Commercial Office Towers, Mid-Rise Apartments |
| AS2047 / CodeMark | Australia & New Zealand | AS4420 Ultimate Limit State Wind Load (Up to 3000Pa), Water Head 450Pa | Heavy-Duty Anodized/Powder-Coated Aluminum Frame | Residential Balconies, High-End Suburban Projects |
| CE / EN 14351-1 | European Union & UK | EN 12210 Wind Resistance Class C5, EN 12207 Air Permeability Class 4 | Thermal Break 70mm / 80mm Depth System | Institutional Buildings, Educational Facilities, Hotels |
Our 35,000 m² state-of-the-art facility integrates 5-axis CNC machining, automated double-head cutting, robotic sorting lines, and exhaustive digital quality control protocols.
Raw materials
Sawing
Milling
CNC Milling
CNC Drilling
CNC Center
Cutting
Intelligent Sorting
Checking and Packing
Sawing Machine
Milling Machine
CNC Milling Machine
CNC Drilling Machine
CNC Center Machine
Double Head Cutting Saw
Intelligent Sorting Line
Semi-finished products inspection
Performance tester
Global architectural door sourcing involves complex logistics, certification verification, engineering customizations, and total cost of ownership (TCO) management.
Coastal exposure and heavy commercial traffic frequently cause hinge sag, lock latching failures, and frame oxidation when using low-grade hardware components.
Custom architectural dimensions often face long revision cycles and site installation errors due to incomplete shop drawings or lack of factory preliminary mock-ups.
The entrance door industry is undergoing a rapid evolution driven by energy efficiency standards, smart automation, and minimalist structural aesthetics.
Integration of smart electronic access control directly into extruded aluminum profiles. Features include semiconductor biometric fingerprint scanners, encrypted keypad access, remote Wi-Fi/Bluetooth app control, and compatibility with commercial BMS (Building Management Systems).
Replacing traditional solid extrusions with polyamide PA66 GF25 thermal break strips. This design physically separates the exterior metal from interior surfaces, eliminating thermal bridging, reducing condensation risk, and drastically lowering heating and cooling loads.
Modern architectural trends favor minimalist design. Our engineered narrow-frame double-hinged glass doors maximize daylight insertion while maintaining structural moment of inertia for tall openings up to 3.5 meters in height.
From emergency egress hardware in high-occupancy hotels to specialized ventilation louvered hinged doors in utility substations, Grandex manufactures custom solutions targeted for precise operational demands.
Fitted with certified panic push bars, automatic door closers, and magnetic lock integrations. Essential for hospitals, shopping centers, office towers, and educational campuses.
Miami-Dade NOA impact-resistant glass combined with corrosion-proof hardware. Designed specifically for modular seaside homes and exposed high-rise balcony openings.
All-aluminum louvered hinged doors designed for transformer rooms, pump houses, and tool storage facilities requiring privacy, security, and continuous heat dissipation.
Double glazed frames incorporating reflective tinted glass or low-E thermal control. Ideal for storefronts, luxury hotels, corporate headquarters, and executive suites.
Select from our specialized commercial series including panic egress hardware, security screens, ventilation louvers, and reflective privacy glass doors.
Detailed technical answers for architectural specifiers, developers, and commercial buyers sourcing aluminum hinged door systems.
Grandex Door