The 4 x 3 casement window from DERCHI is a made-to-size thermal-break aluminum out-swing system window measuring 48 x 36 in (1219 x 914mm), covering approximately 1.11 square meters. Built on the S9 Starlight System platform, it is engineered for project procurement rather than off-the-shelf supply.
- Custom-made to project drawings — not a stock standard window
- S9 thermal-break frame with 109mm width, 1.8mm wall thickness, and 44/24/15mm multi-strip configuration
- Standard 5+27A+5 double tempered glass with fluorocarbon hollow aluminum spacer
- Recommended two-sash/two-lite layout with each lite approximately 610mm (24.0in) wide
Product Details
The S9 Starlight System forms the structural backbone of this custom 4 x 3 casement window. The 109mm frame uses a 1.8mm multi-cavity aluminum profile with a 44mm extra-wide insulation strip arranged in a 44/24/15mm multi-thermal-break configuration. A three-seal structure, micro-elastic glass block, and frame-sash coplanar design distinguish it from conventional aluminum frames. For the 4x3 footprint, the recommended two-sash/two-lite layout gives each lite approximately 610mm (24.0in) of width, while a three-lite alternative narrows each lite to roughly 406mm (16.0in). The glass sash swings outward and the screen sash inward, with casement sash dimensions ranging 400–750mm wide and 400–1500mm high.
Two alternative series share the same verified performance parameters but serve different project tiers. E0 Glory uses a 100mm frame with 35/30/12mm insulation strips and supports 48/88 edge wrapping plus top curved arc craft, positioned for soundproof double glazing needs. S6 Star Sea features an 82mm frame with 35/14.8/30mm strips, a hidden folding screen sash, and a WEHAG handle without base. Buyers evaluating a 4 x 3 casement window supplier can match series to budget and performance priorities, then confirm sash weight capacity and glass configuration before finalizing specifications.
Product Features
- Thermal-Break Multi-Strip Configuration: The 44/24/15mm insulation strip arrangement with a 44mm extra-wide strip and multi-cavity profile reduces thermal transfer. Buyers should confirm exact U-value (W/m²·K) for their selected glass configuration and whether Low-E upgrades change the thermal rating.
- Three-Seal Weather Protection: EPDM water-swelling weather strip combined with a three-seal structure addresses air and water infiltration. The 700Pa Class 6 water tightness and 1.2 Class 8 air tightness ratings come from manual data — buyers should request applicable test standards and report availability.
- Out-Swing Opening with Inward Screen: Glass sash opens outward while the screen sash operates inward, preserving interior floor space. The 13-inch friction stay hinge controls swing arc; buyers should confirm maximum sash weight capacity for their chosen glass type.
- Security Hardware Suite: A child-safe handle, two-point lock, roller lock point, anti-pry lock seat, and anti-pull-out transmission box form an integrated security package. Optional upgrades include fingerprint, password, and key handle combinations for access control projects.
- Sound Insulation Performance: The standard 5+27A+5 double tempered glass achieves 35dB Class 4 sound insulation per manual data. Buyers should confirm whether this rating applies to the standard glass or requires upgraded laminated or thicker configurations for their acoustic requirements.
- Wind Pressure Resistance: The 5kPa Class 9 wind pressure rating supports exposure to demanding conditions. Buyers should verify whether this rating applies specifically to the 4x3 two-sash configuration and request test size documentation for project compliance submissions.
Customizable Styles
- Glass Configuration: Standard 5+27A+5 fluorocarbon hollow aluminum spacer double tempered glass; optional upgrades include argon gas, Low-E, laminated, frosted, tinted, ultra-clear, and built-in blind glass.
- Frame and Series Selection: S9 (109mm frame, 44/24/15mm strips), E0 Glory (100mm, 35/30/12mm), or S6 Star Sea (82mm, 35/14.8/30mm) — all sharing verified performance parameters for different budget tiers.
- Size and Sash Layout: Recommended two-sash/two-lite at 610mm per lite or three-lite at 406mm per lite for the 4x3 footprint; custom dimensions available with project drawings and opening confirmation.
- Color and Finish: Twelve standard colors plus eight E5N card options; finishes include powder coating, fluorocarbon, wood grain, metallic flash silver, and dark modern appearances for interior-exterior coordination.
- Opening and Structure: Out-swing casement, top-hung, or out-swing top-hung; structural options span single sash, fixed+operable, asymmetric layouts, multi-pane window walls, and specialty shapes including pitched and hexagonal.
Hardware Accessories
- Handle: DERCHI custom child-safe handle is standard; optional fingerprint, password, and key handle upgrades available. S6 series uses WEHAG handle without base — confirm S9 hardware brand details with supplier.
- Friction Stay Hinge: 13-inch friction stay hinge controls the out-swing arc. Buyers should confirm maximum sash weight capacity for their selected glass configuration to validate hardware suitability before ordering.
- Lock System: Two-point lock with roller lock point and anti-pry lock seat provides multi-point security. The anti-pull-out transmission box reinforces sash integrity against forced entry attempts.
- Weather Sealing: EPDM water-swelling weather strip expands upon water contact, actively improving seal performance during rain. This works with the three-seal structure to manage air and water infiltration.
- Screen and Guard Options: Optional 48-mesh high-transparency screen mesh, steel wire mesh, and guardrail are available. S6 series offers hidden folding screen sash — confirm compatibility with your selected series and configuration.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 2.0W Class 6 (S9 manual data) | Confirm U-value unit (W/m²·K) and whether Low-E or argon upgrades change this rating. |
| Wind Pressure Resistance | 5kPa Class 9 (S9 manual data) | Confirm test size and whether this rating applies to the 4x3 two-sash configuration specifically. |
| Water Tightness | 700Pa Class 6 (S9 manual data) | Confirm applicable test standard (GB or equivalent) and request test report availability. |
| Air Tightness | 1.2 Class 8 (S9 manual data) | Confirm specific test standard, unit interpretation, and air infiltration rates at different pressure levels. |
| Sound Insulation | 35dB Class 4 (S9 manual data) | Confirm whether this applies to standard 5+27A+5 glass or requires upgraded laminated or thicker glass. |
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | DERCHI 4 x 3 Casement Window |
| Product Type | Thermal-break aluminum out-swing casement window (made-to-size) |
| Overall Size | 48 x 36 in (1219 x 914mm) |
| Overall Area | Approximately 1.11 sqm |
| Primary Series | S9 Starlight System |
| Frame Width | 109mm (S9) / 100mm (E0) / 82mm (S6) |
| Wall Thickness | 1.8mm (all series) |
| Insulation Strips | S9: 44/24/15mm / E0: 35/30/12mm / S6: 35/14.8/30mm |
| Standard Glass | 5+27A+5 fluorocarbon hollow aluminum spacer double tempered |
| Glass Options | Argon, Low-E, laminated, frosted, tinted, ultra-clear, built-in blind |
| Opening Types | Out-swing casement, top-hung, out-swing top-hung |
| Sash Range (Casement) | Width 400–750mm, Height 400–1500mm |
| Sash Range (Top-hung) | Width 510–750mm, Height 700–1500mm |
| Max Single Fixed Glass | 6 sqm |
| Recommended Layout | Two-sash/two-lite, each lite ~610mm (24.0in) |
| Alternative Layout | Three-lite, each lite ~406mm (16.0in) |
| Color Options | 12 standard + 8 E5N card colors |
| Finish Options | Powder coating, fluorocarbon, wood grain, metallic flash silver |
| Hardware | Child-safe handle, 13-inch friction stay hinge, two-point lock, anti-pry lock seat |
| Weather Strip | EPDM water-swelling |
| MOQ | 2 square meters (common) |
| Delivery Time | Approximately 25–35 days |
| Packaging | Four-layer protection: protective film, pearl cotton, waterproof film, wooden rack; plus PE anti-seawater film, air bag isolation |
| Delivery Options | Door-to-door service or port delivery |
| Certifications | CE/NFRC/CSA and US/AU IGCC mentioned — confirm certificate numbers and validity |
| Warranty | Confirm terms and coverage period with supplier before order |
Advantages
- Made-to-Size System Window: Each 4 x 3 casement window is manufactured to project drawings, not pulled from stock. This allows precise dimension, color, glass, and hardware matching for specific building requirements.
- Multi-Series Budget Flexibility: S9, E0 Glory, and S6 Star Sea series share verified performance parameters while covering high-end, value, and lightweight project tiers — letting buyers align specifications with budget priorities.
- Verified Performance Ratings: Manual-documented ratings include Class 6 water tightness, Class 8 air tightness, Class 9 wind pressure, 35dB sound insulation, and Class 6 thermal insulation. Buyers should request test reports for compliance submissions.
- Deep Customization Scope: Over 20 color options, 5 finish types, 15+ structural layouts, 8+ glass configurations, and multiple screen and hardware upgrades give project teams configuration control across architectural styles.
- Export-Ready Packaging: Four-layer protection with anti-scratch film, pearl cotton, waterproof outer film, and fully enclosed wooden rack — plus PE anti-seawater film and air bag isolation — supports safe international shipping.
Application Scenarios
- Apartment: Space-conscious apartment projects benefit from the out-swing opening that preserves interior floor area. The two-sash layout at 610mm per lite suits standard apartment window openings — confirm installation conditions and jamb options with your contractor.
- Home Office: For home offices requiring daylight and ventilation without sacrificing wall space for furniture, the outward-swinging sash keeps the interior clear. Optional built-in blind glass manages glare without external window treatments.
- Hotel: Hotel projects can leverage the 35dB sound insulation rating and multiple color finishes to match interior design schemes. Confirm whether acoustic performance requires upgraded glass beyond the standard 5+27A+5 configuration for specific room orientations.
- Office Building: Commercial 4 x 3 casement window applications in office buildings benefit from the thermal-break multi-strip frame for energy management. Project teams should verify U-value documentation for local energy code compliance before specification.
- Outdoor: When specified for outdoor-exposed elevations, buyers must confirm water tightness (700Pa Class 6), wind pressure resistance (5kPa Class 9), and surface finish durability against local climate conditions. Request test reports applicable to the installation orientation.
- Residential Building: New residential construction projects can use the multi-series approach — S9 for premium units, E0 for value tiers, S6 for lightweight applications. All share the same performance parameters, simplifying specification across unit types.
- Exterior: Exterior facade integration requires confirming weather resistance ratings, seal performance, and finish compatibility with the building envelope system. Buyers should request detailed installation instructions and verify mounting conditions before finalizing the 4x3 configuration.
- Villa: Villa projects can take advantage of the full color card (20+ options), wood grain finishes, and specialty structural shapes including pitched, trapezoidal, and hexagonal combinations. Confirm grille or divided-lite pattern availability if architectural style requires them.
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 is the 4 x 3 casement window?
It is a DERCHI made-to-size thermal-break aluminum out-swing casement window measuring 48 x 36 in (1219 x 914mm), approximately 1.11 sqm. Built on the S9 Starlight System platform, it is custom-manufactured to project drawings — not a stock standard product.
What information do I need to provide for a quote?
Provide overall size drawings, opening type, glass configuration, color/finish, hardware options, screen or mesh requirements, quantity, destination port or door-to-door address, and packaging preferences. The more configuration details you supply, the more accurate the quotation will be.
Can the window be customized for my project?
Yes. Glass options include Low-E, argon, laminated, frosted, tinted, and built-in blind. Over 20 colors, 5 finishes, and 15+ structural layouts are available. Confirm specific glazing thickness options beyond standard 5+27A+5 and any grille or divided-lite requirements with the supplier.
What is the minimum order quantity for 4 x 3 casement window wholesale?
The common MOQ is 2 square meters. For wholesale orders, confirm batch pricing, production capacity for your quantity, and lead time beyond the approximate 25–35 day reference with the supplier before placing bulk orders.
Are certifications available for project compliance?
CE, NFRC, CSA, and US/AU IGCC glass certifications are mentioned in official materials. However, specific certificate numbers and validity dates are not currently provided. Buyers should request current certificate documentation and test reports before compliance-dependent procurement decisions.
What should I confirm before ordering?
Confirm U-value/SHGC for your glass configuration, sash weight capacity for friction stay hinges, warranty terms and coverage period, installation instructions, and jamb/mounting conditions. Also verify whether performance ratings apply specifically to the 4x3 two-sash configuration.
How is the window packaged for shipping?
Four-layer protection includes anti-scratch film, wear-resistant pearl cotton, waterproof outer film, and a fully enclosed wooden rack. Additional PE anti-seawater film, pallet fixation, and air bag isolation support export shipping. Door-to-door or port delivery is available.
