A 40 x 40 casement window provides balanced proportions for bedroom, bathroom, stairwell, and study applications. Built on the DERCHI R8Y Ruixuan system, this thermal break aluminum out-swing window measures 1016 x 1016 mm and offers verified weather resistance for residential and light commercial projects.
- Overall size: 40 x 40 in (1016 x 1016 mm), total area ~1.03 sqm
- Recommended two-sash layout with each sash width approximately 508 mm
- Standard 5+27A+5 argon-filled double glazing with fluorocarbon spacer
- Out-swing, top-hung, and out-swing top-hung opening configurations
Product Details
The R8Y Ruixuan system features a 118 mm frame width with 1.8 mm wall thickness and 35/34/16 mm insulation strips. Within the 40 x 40 in opening, the recommended two-sash layout gives each sash a width of roughly 508 mm, while a three-lite alternative yields approximately 339 mm per lite. The glass sash opens outward and the screen sash opens inward, supported by triple sealing, equal-pressure drainage, concealed drainage, and an EPDM water-swelling weather strip.
Buyers specifying a custom 40 x 40 casement window can also evaluate the E0 Glory series (100 mm frame, 1.8 mm wall) for budget-conscious bulk engineering, or the S6 Xinghai series (82 mm frame, 1.8 mm wall) for lightweight projects requiring a hidden folding screen. All three series share the same 5+27A+5 fluorocarbon insulated aluminum spacer glass and out-swing operation, allowing project teams to match frame width, insulation strip configuration, and price tier to specific building requirements.
Product Features
- Thermal Insulation: The 35 mm super wide insulation strip and argon-filled 5+27A+5 glazing contribute to a thermal performance grade of 2.0W grade 6, helping reduce heat transfer.
- Weather Resistance: Triple sealing, equal-pressure drainage, concealed drainage, and EPDM water-swelling weather strip deliver 700Pa grade 6 water tightness for heavy rain scenarios.
- Wind Safety: With 5kPa grade 9 wind pressure resistance and a 150 kg anti-fall rope, the out-swing sash is suited for high-rise installations where wind loads are a concern.
- Security and Hygiene: A patented four-side six-point lock, anti-theft flyscreen, and WEHAG antibacterial handle with silver ion coating (99% bacterial inhibition) address safety and cleanliness.
- Hardware Durability: Germany WEHAG hardware, including a 12-inch friction hinge and baseless handle, is rated for 100,000+ open cycles, supporting long-term daily operation.
- Square Proportion Design: The 40 x 40 in square format emphasizes flush frame-sash lines and clean proportions, fitting bedroom, bathroom, stairwell, and small facade openings.
Customizable Styles
- Glass Options: Argon gas, PVDF/fluorocarbon insulated aluminum spacer, Low-E, laminated, frosted, tinted, ultra-clear, and blind glass are available to meet different lighting and privacy needs.
- Color and Finish: Choose from Sand Gray, Dark Coffee, Black Crystal, Starry Black, White, Black Walnut, Indigo Gray, Mint Gold, and E5N card colors with powder coating, fluorocarbon, or wood grain finishes.
- Size and Layout: While the title size is 40 x 40 in, structures include single sash, double sash, fixed + operable, three-segment, top transom, 4-lite, multi-lite window-wall, and special shapes.
- Frame and Series: Select R8Y (118 mm frame), E0 (100 mm frame) for bulk engineering, or S6 (82 mm frame) with a hidden folding screen, all featuring 1.8 mm wall thickness.
- Opening Configuration: Out-swing, top-hung, and out-swing top-hung operations are available, with the glass sash opening outward and the screen sash opening inward.
Hardware Accessories
- Handle: WEHAG baseless handle, with an antibacterial variant featuring silver ion coating that can inhibit bacterial growth up to 99%.
- Lock: Custom black zinc alloy four-side six-point lock, a patented invention providing multi-point security for the sash.
- Hinge: 12-inch friction hinge in steel, designed to control out-swing operation speed and hold the sash in position.
- Safety Hardware: Anti-fall rope with a 150 kg bearing capacity, plus an anti-collision corner protector for safer daily use.
- Screen and Bead: Built-in diamond mesh glazing bead and anti-theft flyscreen; S6 series offers a hidden folding screen. Exact finish colors are subject to confirmation.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 2.0W grade 6 | Buyers should request exact U-value in W/m2·K and SHGC from third-party test reports. |
| Wind Pressure Resistance | 5kPa grade 9 | Confirm this meets local building code for the specific wind zone of your project. |
| Water Tightness | 700Pa grade 6 | Verify if regional testing standards align with these Chinese national standard grades. |
| Air Tightness | 1.2 grade 8 | Buyers should confirm the specific testing standard referenced for this value. |
| Sound Insulation | 35dB grade 4 | Confirm if this is a laboratory or field-tested value for acoustic planning. |
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | 40 x 40 Casement Window |
| Product Type | Thermal break aluminum out-swing casement window |
| Primary Series | R8Y Ruixuan system (E0 Glory / S6 Xinghai alternatives) |
| Title Size | 40 x 40 in (1016 x 1016 mm), ~1.03 sqm |
| Frame Width | R8Y: 118 mm | E0: 100 mm | S6: 82 mm |
| Wall Thickness | 1.8 mm across R8Y, E0, and S6 series |
| Insulation Strip | R8Y: 35/34/16 mm | E0: 35/30/12 mm | S6: 35/14.8/30 mm |
| Glass Type | 5+27A+5 fluorocarbon insulated aluminum spacer |
| Glass Options | Argon, Low-E, laminated, frosted, tinted, ultra-clear, blind |
| Opening Style | Out-swing, top-hung, out-swing top-hung |
| Sash Size Range | Width 350-750 mm, Height 450-1500 mm |
| Max Single Fixed Glass | 12 sqm |
| Hardware | WEHAG handle, 12-inch friction hinge, four-side six-point lock |
| Materials | Thermal break aluminum, EPDM, zinc alloy, steel, diamond mesh |
| Finishes | Powder coating, fluorocarbon, wood grain, metallic flash silver |
| Customization | Custom sizes, colors, structures, and opening configurations |
| Notes | Overall assembly size limits, U-value, and certifications to be confirmed |
Advantages
- Verified Performance: Delivers 700Pa water tightness, 5kPa wind resistance, and 35dB sound insulation, giving project teams concrete structural data for specification.
- Series Flexibility: Offers R8Y (118 mm), E0 (100 mm), and S6 (82 mm) frame tiers, allowing buyers to match frame width and price to project budget.
- Weather and Safety: EPDM water-swelling strips, 150 kg anti-fall rope, and a patented six-point lock address coastal weather, heavy rain, and high-rise safety concerns.
- Hardware Reliability: Features Germany WEHAG hardware tested to 100,000+ open cycles, supporting long-term operational durability in residential settings.
- Customization Capability: As a 40 x 40 casement window manufacturer, DERCHI supports custom glass, 20+ colors, multiple finishes, and diverse structural combinations.
Application Scenarios
- Apartment: The 40 x 40 in square proportion fits apartment bedrooms and bathrooms, providing balanced daylight and out-swing ventilation without occupying interior space.
- Home Office: Sound insulation of 35dB grade 4 helps reduce external traffic noise, creating a quieter environment for focused work and study areas.
- Hotel: The flush frame-sash design and WEHAG antibacterial handle suit hotel guestrooms requiring clean aesthetics, hygiene, and reliable hardware cycles.
- Office Building: A commercial 40 x 40 casement window can be combined in multi-lite window-wall formats for stairwells and corridors requiring natural light and wind resistance.
- Outdoor: For outdoor or exposed installations, buyers should confirm weather resistance, water tightness, and surface finish durability against local climate conditions.
- Residential Building: The E0 Glory series offers a 100 mm frame option for bulk residential engineering, balancing thermal break performance with budget-sensitive project pricing.
- Exterior: When used on exterior facades, verify that the 5kPa wind pressure grade and installation method meet local building codes for the specific building height.
- Villa: The R8Y 118 mm frame and extensive color options, including Black Walnut and Fluorocarbon Flash Silver, support villa facades requiring architectural coherence.
Inquiry Guidance
To request a quote, please share your project location, required size, quantity, preferred frame color, glass type, hardware requirements, and drawings or reference photos if available.
FAQ
What information is needed for a 40 x 40 casement window quote?
Buyers should provide size, glass type, color/finish, hardware, screen type, structure/layout, quantity, destination, and packaging requirements. This allows the supplier to prepare an accurate quotation.
What is the MOQ and delivery time for bulk orders?
Platform pages list a common MOQ of 2 sqm and approximately 25-35 days delivery. These are reference values; buyers should confirm official MOQ and production lead time for their specific series and quantity.
Are AAMA, WDMA, or CE certifications available?
Specific regional compliance documents are not confirmed in current data. Buyers should request available certification documents and verify whether they apply to the selected configuration and target market.
Can the window be used for commercial projects?
Yes, the window is suitable for light commercial and bulk residential projects. The R8Y, E0, and S6 series offer different frame widths and price tiers to match various project scales and budgets.
What testing standards do the performance grades reference?
The performance grades (700Pa water, 5kPa wind, 35dB sound) reference Chinese national standards. Buyers should confirm alignment with local building codes and request third-party test reports.
Are grilles, grids, or divided-lite patterns available?
This is not confirmed in current product data. Buyers should ask the supplier if divided-lite patterns or specific grille designs are offered for the 40 x 40 in configuration.
What packaging is used for export shipping?
Export packaging includes anti-scratch film, pearl cotton, waterproof outer film, and a fully enclosed wooden rack, plus pallet fixation and PE seawater-proof film. Door-to-door or port shipping is available.
