





The DERCHI WY-118L Series aluminium windows that look like wood are aluminum casement windows that meet NFRC, AS2047, and CE standards. These aluminium windows that look like wood are for buyers who want timber aesthetics without natural-wood maintenance. DERCHI will arrange additional testing and certification when a buyer's project requires it.
- Outward-opening casement configuration in the WY-118L Series
- Aluminium construction with wood-look finish for timber aesthetics
Product Details
The DERCHI WY-118L Series is an aluminum casement window with outward opening and awning operation, built with a 1.8mm profile thickness and 118mm frame width. The frame uses PVDF-finished aluminum with wood-grain texture, paired with an S18 multi-cavity insulation strip and double tempered glass (5mm+27A+5mm) filled with argon gas and separated by a PVDF aluminum strip. Hardware includes a WEHAG no-base handle available in black, silver, or antique bronze, a WEHAG hinge, and a black six-point lock with an invention patent. The production process runs through surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, and packing.
Buyers should confirm glass configuration from seven available options, select from ten customizable layout configurations combining fixed panels, casement sashes, and awning openings, and specify color finishes from two PVDF options (Retro Green, Mint Gold) plus ten stock colors spanning wood-grain to solid metallic and matte. Optional packaging includes the New 48 Pack or New 88 Pack, and DERCHI can supply the complete window system including profiles, hardware, accessories, glass, and finished products. Delivery runs 25-35 days after deposit and drawing confirmation, with a 10-year warranty covering frame unfading and hardware operation, and products meeting NFRC, AS2047, and CE standards with 100% full inspection before shipment.
Product Features
- Specify a timber appearance without solid-wood frame material by selecting wood-grain texture finishes on the PVDF-coated aluminum frame.
- Confirm exterior clearance before choosing the Outward Opening / Awning operation for ground-floor or walkway-adjacent installations.
- Match operating hardware to the interior color scheme using the WEHAG handle finishes in black, silver, and antique bronze.
- Select the six-point locking mechanism with invention patent when multi-point locking is a project requirement.
- Choose the S18 multi-cavity insulation strip when U-factor 0.23 and SHGC 0.20 performance targets apply.
- Specify double tempered glass with argon gas between panes when 35 dB acoustic separation is needed.
- Verify wall opening dimensions against the 118 mm frame width and 1.8 mm profile thickness before ordering.
- Select the DERCHI-designed, WEHAG-branded handle, 13-inch friction hinge, and independently developed transmission box when component compatibility across the WY-118L window system is required.
Customizable Styles
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options spanning wood-grain textures, solid metallic, and matte finishes.
- Glass configuration: seven options available — single, tempered, double-glazed, triple, insulating, laminated, and frosted glass.
- Standard double tempered glass: 5mm+27A+5mm with argon gas and PVDF aluminum strip between panes.
- Layout configurations: WY-118L series supports ten customizable layouts combining fixed panels, casement sashes, and awning openings.
- Opening way: outward opening or awning.
- Handle finish: WEHAG handle available in Black or Silver.
- Optional packaging: New 48 Pack or New 88 Pack.
Hardware Accessories
- WEHAG handle in black and silver finishes; standard no-base variant also offered in antique bronze.
- DERCHI independently developed customized handle designs for the WY-118L series.
- WEHAG hinge specified for the casement window system.
- 13-inch flat open friction hinge independently developed by DERCHI.
- Black Six Point Lock with invention patent.
- WEHAGE lock point and lock seat system operates with the six-point locking mechanism.
- DERCHI customized transmission box.
- Complete window system supplied as a package including profile, hardware, accessories, glass, and finished products ready for installation.
- 10-year quality warranty covers frame unfading and hardware and accessories working properly under correct operation.
Basic Parameters
| Performance Dimension | Product Value | Meaning & Test Method | Test Reports to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; S18 multi-cavity DERCHI insulation strip | Thermal performance is compared using the declared rating, test method, specimen configuration, and project boundary conditions. | Request the applicable thermal test or simulation report and the declared product configuration. |
| Wind Pressure Resistance | 5K Pa | Wind pressure resistance is reviewed against the specified test pressure, specimen size, anchorage, and acceptance criteria. | Request the wind-pressure test report and confirm the tested specimen and installation conditions. |
| Water Tightness | 700Pa | Water tightness is reviewed against the test pressure, spray exposure, specimen configuration, and leakage criteria. | Request the water-penetration test report and confirm the tested pressure and assembly configuration. |
| Air Tightness | 1.2 m³/(m·h) | Air tightness is reviewed against the pressure differential, specimen area, reporting units, and tested configuration. | Request the air-leakage test report and confirm its pressure and specimen configuration. |
| Sound Insulation | 35 dB | Sound insulation is compared using the stated laboratory method, specimen construction, glazing, and reported acoustic metric. | Request the acoustic test report and confirm that the tested construction matches the proposed configuration. |
Product Specifications
| Specification | Value |
|---|---|
| Glass | Double Tempered Glass with argon gas 5mm+27A+5mm, PVDF Aluminum Strip between double glass |
| Profile Thickness | 1.8MM |
| Frame Width | 118MM |
| Handle | WEHAG Handle in Black and Silver |
| Hinge | WEHAG Hinge (13-inch friction hinge) |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip (S18 multi-cavity) |
| Opening Way | Outward Opening / Awning |
| Optional Package | New 48 Pack / New 88 Pack |
| Water Tightness | 700Pa |
| Air Tightness | 1.2 m³/(m·h) |
| Wind Pressure Resistance | 5K Pa |
| Sound Insulation | 35 dB |
| U-factor | 0.23 |
| SHGC | 0.20 |
| Warranty | 10 years quality warranty |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
- Confirmed drawings must be provided before quotation and production scheduling.
- Deposit confirmation is required to initiate the 25–35 day production timeline.
Advantages
- 15+ years of experience in aluminum windows and doors across 200,000+ completed projects.
- 70,000+ m² factory with 600+ employees and 600,000+ m² annual output.
- 20+ expert R&D team holding 100+ national patents including invention patents.
- Full pre-shipment inspection on every order.
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001; products tested and certified on buyer request.
- OEM/ODM customization capability and trade with customers in 100+ countries reduce project risk.
- One-stop service from ordering to shipment with engineering and installation supervision support.
- 10-year quality warranty backed by 700+ distributors.
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Coastal or high-precipitation commercial buildings | Sublimated wood-grain finish protects against corrosion, UV rays, and coastal salt exposure | Local wind-load rating and salt-spray exposure class for the project site |
| High-rise commercial structures | Aluminium frame construction depths range from 68 mm to 92 mm | Structural anchoring method and glazing thickness for height-specific wind pressure |
| Buildings near traffic corridors | Double and triple glazing options available for sound insulation | Acoustic insulation rating required by local building code |
| Energy-focused commercial facilities | Uw-values from 0.73 to 0.89 W/(m²K); Passive House Institute certification referenced | U-value target and glazing configuration to meet local energy code |
| Residential buildings and apartments | Casement opening combination and custom sizes available | Opening style, ventilation mode, and child-safety hardware requirements |
| Office buildings and hotels | Aluminium frame with wood-grain sublimated finish for commercial interiors | Fire-rating and emergency-egress compliance for commercial occupancy class |
| Home offices | Casement opening and custom sizes for residential workspace integration | Ventilation mode and daylighting requirements for workspace comfort |
| Villa and whole-house customization projects | Custom sizes and wood-grain finish palette for whole-house coordination | Wood-grain finish palette, hardware finish, and custom size coordination with interior design |
| Exterior applications | Sublimated finish protects against UV rays, coastal salt, and dirty rain | Weather-exposure class and installation sealing method for the facade system |
FAQ
What must be confirmed technically before ordering?
Delivery time runs 25-35 days after deposit and drawing confirmation, so drawings, dimensions, color, and glass type must be finalized before production begins. Price is calculated based on these specific requirements.
What should buyers prepare for volume procurement?
Buyers can order a complete window system including profile, hardware, accessories, and glass, or request finished products. Submitting drawings, dimensions, color, and glass type allows accurate pricing for the full order.
Can glass, color, and layout configurations be customized?
Customization options cover glass type, color, and layout configurations.
What quality control is performed before shipment?
Every product undergoes 100% full inspection before shipment.
Is installation support available?
Engineering and supervising service for installation is available.
Can products be certified if required?
Products will be made tested and certified if the buyer requires.
How is the woodgrain finish applied to aluminium?
A sublimation oven bakes the finish at 200 degrees centigrade, and the sublimated finish protects against corrosion, UV rays, coastal salt, and city centre environments.
What happens if the woodgrain finish is damaged?
Touch-up pens are available for repairing aluminium woodgrain finishes.
Are lead times longer for woodgrain finishes than standard powder coating?
Lead times for woodgrain finishes are generally longer than standard powder-coated finishes, so buyers should account for this when scheduling volume orders.

