High-performance double glazed, thermal break, and hurricane impact-resistant doors and windows engineered for global commercial and luxury residential standards.
Establishing global benchmarks in architectural entrance systems through integrated R&D, mass scale automated production, and rigorous international quality assurance.
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.
Architectural pivot doors represent a synthesis of structural physics, advanced metallurgy, and modern minimalist design. Here is how Grandex delivers structural superiority for high-end projects.
Designed to carry dynamic panel loads up to 1,000 kg (2,200 lbs). Utilizing aircraft-grade stainless steel bearings and floor-concealed hydraulic self-closing mechanisms with 90° hold-open flexibility.
Incorporating high-grade Technoform polyamide insulating strips (PA66GF25) to prevent thermal bridging, achieving low U-factors (U < 0.28 BTU/hr·ft²·°F) suitable for extreme climate envelopes.
Custom OEM configurations support motorized smart locks, biometric fingerprint access, smart home automation integration, and heavy-duty 5-point mechanical deadlock hooks for maximum forced-entry protection.
Features automated drop-down bottom seals and multi-layered EPDM gasket seals that engage upon door closure, assuring water resistance up to 600 Pa and high sound attenuation (STC 42+ rating).
Engineering capabilities allow single panel oversized widths up to 3,000mm and height configurations up to 6,000mm, delivering dramatic grand entrances without structural sagging.
AkzoNobel powder coatings, PVDF fluorocarbon coatings, natural anodizing, and real wood veneer laminations conforming to AAMA 2605 specifications for superior UV and anti-corrosion protection.
Grandex pivot door profiles are tested under severe cyclic wind pressure and large missile impact conditions. Designed to meet strict coastal regulations including Miami-Dade NOA and Florida Building Codes.
Tailor every structural detail to match project blueprints:
Custom-engineered pivot door solutions adaptable to diverse regional climates, building codes, and aesthetic demands across the globe.
Designed for expansive modern villas in California, Texas, and Florida. Seamlessly blending interior and outdoor living spaces with oversized floor-to-ceiling glass pivot panels that meet California Title 24 energy efficiency criteria.
Tailored for high-end boutique storefronts, hotel lobbies, and corporate headquarters in Germany, France, and the UK. Compliant with EN 14351-1 safety norms, integrating automated access controls and acoustic dampening.
Engineered to withstand extreme ambient temperatures and sandstorms in UAE and Saudi Arabia. Outfitted with heat-reflective Low-E coatings, dual thermal breaks, and UV-resistant powder-coated exterior surfaces.
Inside our 35,000 m² factory: How 45 dedicated QA specialists and 85 R&D engineers guarantee millimetric accuracy across every production stage.
Why Tier-1 commercial contractors and distributors partner with Grandex Door Solutions for large-scale OEM/ODM project fulfillment.
Leveraging direct strategic alliances with global raw aluminum, specialized hardware (DormaKaba, Hoppe, Siegenia), and technical glass suppliers to ensure uninterrupted material flow and competitive pricing models.
Our intelligent automated sorting and multi-axis CNC production lines allow rapid transition from CAD drawing approval to physical prototype creation in as little as 14 days, with full container shipping readiness in 30 days.
8 years of dedicated export expertise delivering to over 40 countries. Custom ISPM-15 compliant plywood crating ensures zero damage during trans-oceanic shipping and regional site delivery.
Pioneering the next generation of intelligent architectural openings through R&D investments in thermal insulation and automated hardware.
Grandex's 85-engineer R&D division continuously refines structural engineering profiles. Our roadmap focuses on reducing carbon footprint while raising performance benchmarks:
120+ Designs
New custom door systems engineered and certified annually to satisfy evolving global architectural building codes.
Direct technical answers for architectural specifiers, contractors, and distribution partners.
Explore our extended series of commercial storefronts, emergency escape solutions, tilt & turn windows, and specialized glass configurations.
Grandex Door