Grandor Door Industry Co., Ltd. brings 16+ years of manufacturing authority, engineering architectural-grade aluminum profile doors for contractors, wholesalers, and project developers across 60+ countries.
As a specialized factory spanning 155,000 m² in Foshan, China, Grandor Door Industry Co., Ltd. maintains complete control over the entire production value chain — from billet extrusion, anodizing, powder coating, and wood-grain surface treatment to insulated glass assembly and precision corner crimping.
Every door system is engineered using high-grade 6063-T5 aluminum profiles, low-conductivity polyamide thermal break strips, continuous EPDM gasket seals, and certified multi-point hardware to withstand severe weather, hurricane wind loads, and intensive commercial usage.
Overseas procurement demands strict adherence to local building codes. Our aluminum doors are systematically tested and built to meet standard requirements including:
Versatile configurations engineered for high wind-load resistance, acoustic dampening, and modern slim sightlines.
High-span patio and balcony doors engineered with ultra-smooth heavy-duty rollers, flush low thresholds, and minimalist interlocking frames.
Multi-panel bi-fold accordion doors that stack neatly to create seamless transitions between indoor living areas and outdoor spaces.
Classic single and double French-style hinged entrance doors engineered for maximum air sealing, water-tightness, and security protection.
Grandor Door Industry Co., Ltd. provides complete tailored manufacturing based on architectural drawings, project structural calculations, and climate requirements.
| Profile Material | High-precision extruded aluminum alloy 6063-T5, wall thickness 1.6mm to 3.0mm according to structural load requirements. |
|---|---|
| Thermal Break Strip | Polyamide PA66-GF25 low-conductivity insulation bar separating inner and outer profiles to minimize thermal transmission. |
| Glass Build-Up | Double or triple tempered safety glass (5mm+12Ar+5mm, 6mm+16Ar+6mm), Low-E coating, argon filled, laminated acoustic glass available. |
| Surface Finish | AkzoNobel architectural powder coating, fluorocarbon (PVDF), anodizing, and 3D durable wood-grain heat transfer finishes. |
| Hardware Systems | High-durability hardware (German Siegenia, Hoppe, or premium Grandor custom OEM multi-point locking gear). |
| Sealing & Weathering | Continuous EPDM double/triple rubber gasket seals with corner vulcanization for top air, water, and sound isolation. |
| Export Packaging | Protective film, protective corner caps, foam wrapping, and steel-reinforced fumigated plywood crates for safe ocean transit. |
Key information regarding technical verification, quality control, shipping, and customization.
Our door systems are manufactured using prime 6063-T5 aluminum profiles and comply with international performance standards including CE (EN 14351-1), AS2047/AS1288 (Australia), and NFRC/ASTM (North America).
Grandor produces heavy-duty sliding doors (lift-and-slide, pocket, slim frame), bi-fold folding doors, and single/double architectural casement doors with thermal break profiles and insulated glass.
Yes. With complete in-house extrusion, anodizing, powder coating, wood-grain finishing, and glass tempering in our 155,000 m² factory, all doors are fully customized to architectural shop drawings.
Each door sash and frame is covered with protective film, edge protectors, foam cushioning, and packed into custom heavy-duty plywood crates designed to withstand container loading and multi-modal transport.
Send us your project window and door schedules, architectural CAD drawings, or performance requirements. Our technical sales engineers will respond with detailed cost estimates within 24 hours.