Heavy-Duty Smart Entrance
Architectural Product Portfolio
Precision-Engineered Door & Window Systems
Manufactured by Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI), these systems combine thermal break extrusions, marine-grade corrosion resistance, and intelligent locking hardware suitable for washrooms, wet zones, and building interiors.
Thermal Commercial Rated
Acoustic Tilt-and-Turn
Crittall Style Partition
Acoustic Sliding Folding
Double Glazed Casement
High-End Pivot Design
Luxury Lift-and-Slide
180,000m²
Modern Production Base (Foshan)
1,000,000m²+
Annual Manufacturing Output
100+
R&D Patents & Innovations
18,000+
Global Projects Delivered
Enterprise Manufacturing Competence
Why Tier-1 Contractors and Wholesalers Partner With DERCHI
Recognised as a China Famous Brand by Xinhua News Agency, Guangdong Dejiyoupin Doors and Windows Co., Ltd. operates with over 25 years of structural fenestration expertise. We bridge factory-direct pricing with rigorous international certifications.
Patented Anti-Burglary Multi-Point Locking
Our exclusive Four-Side Six-Point Lock invention patent ensures maximum weather tightness and burglary prevention, surpassing standard commercial washroom hardware standards.
360-Degree Quality Control & Intelligent Automation
Zero-error manufacturing powered by CNC profile cutting, automatic milling, and laser dimension checks. Every aluminium washroom door sash undergoes triple pre-assembly verification before shipment.
Stringent International Certifications
Full regulatory compliance across five continents: CE Marking (EN 14351-1), NFRC (USA), AS2047 (Australia), CSA (Canada), Energy Star, and ISO 9001 certified manufacturing.
Whole-House System Customisation
End-to-end architectural fenestration matching: coordinate your washroom doors with balcony lift-and-slide systems, French doors, entry pivots, thermal break windows, and sunrooms under one roof.
Dedicated Engineering & BIM Support
Backed by over 30 structural R&D engineers. We supply detailed CAD cross-sections, 3D BIM object libraries, thermal simulation reports, and customised installation shop drawings for complex builds.
Export Logistics & Port Protection
Solid-core container load planning, anti-corrosion seaworthy film wrap, reinforced plywood crating, and corner guards tailored for major ports like Rotterdam, Hamburg, Los Angeles, and Jebel Ali.
Industry Whitepaper Analysis
Future Procurement Trends in Aluminium Washroom Doors
Washroom doors in modern commercial developments and residential villas are subject to strict environmental dynamics: 100% relative humidity, chemical cleaning agents, continuous cyclic operation, and privacy requirements.
Architecture Trend 01
Ultra-Narrow Bezel & Flush-To-Wall Integration
Minimalist luxury interiors are phasing out bulky 80mm face profiles in favor of 16mm–25mm micro-slim aluminum profiles. Concealed pivot hinges and invisible wall-recessed frames create seamless transitions between private bath suites and master bedrooms without sacrificing structural integrity.
Material Trend 02
Fluorocarbon Spraying & Anodised Finishes
Standard liquid coatings deteriorate under steam exposure. Procuring teams now prioritize 25μm architectural anodising, Qualicoat Class 2 certified powder coating, and PVDF fluorocarbon coatings that withstand detergent splashes, fungal growth, and salt spray fog (ASTM B117 testing exceeding 1,000 hours).
Smart Tech Trend 03
Electrochromic PDLC Privacy Glazing
Modern luxury hospitality projects are replacing static frosted acid-etched glass with laminated Polymer Dispersed Liquid Crystal (PDLC) switchable smart glass. The glass shifts from optical clarity to opaque white in milliseconds, controlled via magnetic dry-contact sensors, smart locks, or building management systems.
Engineering Trend 04
Acoustic Decibel Isolation (Rw ≥ 36dB)
En-suite bathroom acoustics require sound insulation. Multi-chamber thermal break profiles fitted with dual-perimeter automotive-grade EPDM foam gaskets, acoustic PVB laminated glass, and automatic drop-down bottom door sweeps isolate plumbing noises and maintain luxury hotel standards.
Sustainability Trend 05
Low-Carbon Recycled Extrusions (EPD)
With tightening ESG benchmarks and LEED/BREEAM scoring, European and North American buyers are demanding aluminium billets refined with hydro-electric energy and high recycled content (≥ 75%), accompanied by verified Environmental Product Declarations (EPD).
Supply Chain Trend 06
Consolidated Whole-Fenestration Direct Sourcing
Procuring interior doors, exterior folding patio doors, entry pivots, and glazed partitions from separate suppliers creates color mismatch and dimension discrepancies. Sourcing from a consolidated manufacturing powerhouse ensures consistent RAL finishes and unified hardware aesthetics.
Engineering Specifications
Aluminium Washroom Door Engineering Matrix
A technical guide for architects, façade consultants, and quantity surveyors selecting hardware and profile configurations.
Alloy & Temper Selection
6063-T5 or 6063-T6 primary architectural virgin aluminium alloy with a wall thickness of 1.6mm to 2.2mm, offering higher deflection resistance than recycled composite alloys.
Anti-Bacterial Coating
Specialized hygienic polyester powder coatings infused with silver ion antimicrobial technology to inhibit bacterial culture growth in enclosed high-humidity zones.
Moisture Isolation Gaskets
Perimeter continuous co-extruded EPDM weatherstripping with vulcanized seamless corners, preventing water ingress, mold accumulation, and gasket shrinkage over 20+ years.
Concealed Drainage Sub-Sills
Built-in drainage weep channels and concealed condensation drip trays inside the bottom frame prevent bathroom overflow onto dry wooden bedroom flooring.
Safety Tempered Glass
All washroom door lites feature 6mm–10mm toughened safety glass certified under EN 12150-1 and ANSI Z97.1, with options for Reeded (Fluted), Moru, Acid-etched, or Double Tinted builds.
Grade 304/316 Hardware
Heavy-duty marine-grade stainless steel pivot hinges, lock cylinders, latches, and lever handles engineered to endure corrosive shower environments without surface pitting.
Concealed Soft-Close Sliders
Integrated hydraulic dampers with dual-directional soft-closing mechanisms tested through 100,000 opening/closing cycles without oil leakage or roller misalignment.
Structural Corner Joints
Cast aluminium corner cleats injected with German-imported dual-component structural glue ensure tight mitres and eliminate sash sagging over wide openings.
Contractor & Importer FAQ
Frequently Asked Questions on Aluminium Washroom Door Procurement
Technical guidance from our export engineering department to streamline your order inquiries and site installations.
◆ Why are aluminium washroom doors superior to WPC or wood?
Solid wood, MDF, and Wood Plastic Composite (WPC) doors expand, crack, and harbor mold when exposed to steam and water vapor. High-grade 6063-T5 aluminium features zero water absorption, resists warping under thermal swings, and maintains dimensional stability for decades without rotting or peeling.
◆ What surface finishes prevent corrosion from bathroom cleaners?
We recommend anodic oxidation finishes (15μm–25μm) or electrostatic fluorocarbon PVDF powder coatings. Both pass neutral salt spray (NSS) corrosion testing exceeding 1,000 hours and resist acidic descaling detergents and household ammonia cleaners.
◆ Can your factory supply custom RAL powder coatings & woodgrains?
Yes. We provide complete color customization matched to Tiger Drylac, AkzoNobel, and standard European RAL shade charts. We also supply vacuum heat-transfer 3D woodgrain textures that reproduce oak, teak, and walnut visuals with full aluminium water resistance.
◆ What are your typical production lead times for container orders?
Standard custom configurations require 25 to 35 working days following signed shop drawing approval and deposit confirmation. Supported by an annual production volume exceeding 1,000,000 square meters, our facility easily accommodates fast-track schedules for large hospitality developments.
◆ How does DERCHI ensure acoustic privacy in en-suite washrooms?
We configure multi-cavity profile profiles with sound-absorbing insulating chambers, laminated acoustic PVB glass, and automatic bottom drop seals that engage when closed to block sound transmission without requiring raised floor thresholds.
◆ What export documentation and shipping protection do you provide?
Every shipment includes commercial invoices, packing lists, Mill Test Certificates (MTC), Certificate of Origin, and CE DoP documentation. Units are packed in protective PE wrap, bubble wrap, corner caps, and fumigated reinforced plywood cases.
Initiate Your Aluminium Washroom Door Project Proposal
Send our architectural engineering division your window and door schedules, architectural floor plans, or custom design specifications. We deliver detailed CAD drawings, static structural checks, and competitive factory-direct quotations within 24 hours.