The 72 x 36 casement window is a DERCHI custom thermal-break aluminum window in the S9 Starlight System, organized around the 72 x 36 in (1829 x 914mm) opening with a total area of approximately 1.67 square meters. This is a custom-made product — not a stock standard window — and the recommended configuration splits the 1829mm width into a three-lite layout with center-fixed glass and side outward-opening sashes for balanced ventilation and structural safety.
- Three-lite recommended layout: each lite approximately 24in / 610mm wide
- S9 series: 109mm frame, 1.8mm wall thickness, 44mm extra-wide insulation strip
- Standard glass: 5+27A+5 fluorocarbon hollow aluminum spacer double tempered glass
- Opening types: outward casement, top-hung, and outward-opening top-hung
Product Details
The core of this custom 72 x 36 casement window is a thermal-break aluminum profile with 109mm frame width, 1.8mm wall thickness, and a 44/24/15mm multi-insulation strip configuration — the S9 Starlight System. The multi-cavity profile works with a three-seal structure and EPDM water-swelling weatherstrip to manage air infiltration and water penetration. A micro-elastic glass block reduces corner stress on the 5+27A+5 double tempered glass, while the frame and sash sit on the same horizontal line for a clean facade appearance.
The 1829mm overall width is not recommended as a single sash. Instead, the three-lite layout — each lite approximately 24in (610mm) — pairs a center fixed panel for unobstructed views with side outward casement sashes for cross-ventilation. A two-sash alternative gives each sash roughly 36in (914mm). For projects with different budget tiers, the S6 Star Sea System (82mm frame, invisible folding screen) and E0 Honor Series (100mm frame, value-type) offer the same opening types with adjusted frame dimensions and insulation strip configurations.
Product Features
- Thermal Insulation: The 44mm extra-wide insulation strip paired with a multi-cavity aluminum profile reduces heat transfer through the frame, supporting lower U-values — buyers should confirm specific ratings for their glass configuration.
- Sound Insulation: Rated at 35dB Class 4, the double tempered glass unit helps moderate external noise — confirm frequency range and test standard if acoustic performance is project-critical.
- Security Hardware: The anti-pull angled transmission box, two-point lock, roller sleeve lock point, and anti-pry strike plate form a multi-layer locking system against forced entry attempts.
- Water Tightness: Achieving 700Pa Class 6, the three-seal structure with EPDM water-swelling weatherstrip manages water penetration under wind-driven rain — confirm test standards for project compliance.
- Wind Pressure Resistance: Rated at 5kPa Class 9, the 1.8mm wall thickness profile and load-bearing hinge configuration address wind load demands — verify applicability to specific project requirements.
- Safety Design: The DERCHI custom child-safe handle limits unintended opening, and an optional guardrail can be added for elevated installations or homes with young children.
Customizable Styles
- Glass Configuration: Standard 5+27A+5 double tempered glass; custom options include argon gas, Low-E, laminated, frosted, tinted, ultra-clear, and blinds glass — confirm availability for your project.
- Frame and Series: S9 (109mm, high-end), S6 (82mm, mid-range with invisible folding screen), or E0 (100mm, budget) — select based on performance tier and cost targets.
- Size and Layout: Three-lite recommended (each ~24in/610mm), two-sash alternative (each ~36in/914mm), or four-lite; upper/lower fixed transoms and asymmetric layouts available for facade zoning.
- Color and Finish: Sand Gray, Dark Coffee, Black Crystal, Starry Black, White, Black Walnut, Pear Wood, Fluorocarbon Flash Silver, Indigo Gray, Mint Gold; finishes include powder coating, fluorocarbon, and wood grain.
- Opening Type: Outward casement, top-hung, or outward-opening top-hung; glass sash opens outward with screen sash inward — E5N color card options require confirmation for S9 availability.
Hardware Accessories
- Handle: DERCHI custom child-safe handle standard; optional fingerprint, password, or keyed handle upgrades — confirm compatibility with your selected series and locking configuration.
- Friction Hinge: 13-inch casement friction hinge manages sash movement and holding position; custom load-bearing hinge available for heavier glass configurations — verify capacity for your sash size.
- Lock System: Two-point lock with roller sleeve lock point engages at multiple positions along the sash for improved security — confirm lock placement for your opening direction.
- Strike Plate and Transmission: Anti-pry strike plate and anti-pull angled transmission box resist forced entry — request hardware test documentation if security grading is project-required.
- Screen and Guardrail: Optional 48-mesh high-transparency screen, special steel wire mesh, or guardrail; S6 offers invisible folding screen — confirm mesh type and guardrail specs before ordering.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 2.0W Class 6 (44mm insulation strip, multi-cavity profile) | Confirm specific U-value (W/m²·K) and test conditions for your glass configuration |
| Wind Pressure Resistance | 5kPa Class 9 | Confirm test standard and applicability to project wind load requirements |
| Water Tightness | 700Pa Class 6 (EPDM water-swelling weatherstrip, three-seal structure) | Confirm applicable test standard (EN, AAMA, or other) and conditions for project-specific requirements |
| Air Tightness | 1.2 Class 8 | Confirm which specific standard this classification refers to for compliance |
| Sound Insulation | 35dB Class 4 | Confirm frequency range and test method for acoustic project requirements |
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | 72 x 36 Casement Window |
| Product Type | Thermal-break aluminum outward casement window (custom-made) |
| Title Size | 72 x 36 in (1829 x 914mm), approximately 1.67 sqm |
| Main Series | S9 Starlight System — 109mm frame, 1.8mm wall, 44/24/15mm insulation strip |
| Alternative Series | S6 Star Sea (82mm frame, 35/14.8/30mm strip); E0 Honor (100mm frame, 35/30/12mm strip) |
| Standard Glass | 5+27A+5 fluorocarbon hollow aluminum spacer double tempered glass |
| Custom Glass | Argon, Low-E, laminated, frosted, tinted, ultra-clear, blinds glass |
| Frame Material | Multi-cavity thermal-break aluminum, 1.8mm wall thickness |
| Opening Types | Outward casement, top-hung, outward-opening top-hung |
| Casement Sash Range | Width 400–750mm, height 400–1500mm |
| Top-Hung Range | Width 510–750mm, height 700–1500mm |
| Max Fixed Glass Area | 6 square meters |
| Three-Lite Layout | Each lite approximately 24in / 610mm |
| Two-Sash Layout | Each sash approximately 36in / 914mm |
| Weatherstrip | EPDM water-swelling |
| Seal Structure | Three-seal |
| Common MOQ | Approximately 2 sqm (confirm for custom configurations) |
| Reference Price | Internal reference only — not a fixed transaction price; submit configuration for formal quote |
| Delivery Time | Approximately 25–35 days (confirm for specific order quantities and destinations) |
| Packaging | Four-layer: anti-scratch film, pearl cotton, waterproof film, wooden frame |
| Delivery Options | Door-to-door service or port delivery available |
| Certifications | CE/NFRC/CSA, US/AU IGCC emphasized on official website — request certificate numbers for compliance |
| Customization | Custom sizes, colors, glass, hardware, and structures supported |
Advantages
- Configuration Intelligence: The three-lite recommendation prevents structural issues with 1829mm single sash while maximizing landscape views through center fixed glass and ventilation through side openings.
- Multi-Series Flexibility: S9, S6, and E0 cover high-end, mid-range, and budget project tiers — all share the same opening types with adjusted frame dimensions for cost control.
- Verified Performance: Class 6–9 ratings across water tightness, air tightness, sound insulation, thermal insulation, and wind pressure provide a documented performance baseline for project evaluation.
- Security Ecosystem: Anti-pull transmission, anti-pry strike plate, two-point lock, child-safe handle, and optional guardrail address multiple security and safety concerns in one hardware package.
- Export Readiness: Four-layer packaging with anti-scratch film, pearl cotton, waterproof film, and wooden frame supports overseas shipping; door-to-door or port delivery available — confirm logistics terms.
Application Scenarios
- Apartment: Space-conscious apartment openings benefit from the three-lite layout — center fixed glass brings in daylight without occupying interior clearance, while side casement sashes provide targeted ventilation for living rooms or bedrooms.
- Home Office: A home office setting values the 35dB sound insulation rating to reduce street noise during work hours; the outward-opening sash keeps interior wall space free for desks and shelving.
- Hotel: Hotel facades requiring consistent appearance across rooms can use the S9 frame-and-sash flush design; the three-lite configuration maintains proportional symmetry while delivering thermal performance for guest comfort.
- Office Building: Commercial 72 x 36 casement window applications in office buildings benefit from the 5kPa wind pressure rating and multi-cavity thermal-break profile for energy efficiency across repeated openings on upper floors.
- Outdoor: For outdoor-exposed installations, buyers should confirm water tightness performance under local wind-driven rain conditions, verify surface finish durability against UV exposure, and review installation sealing details before ordering.
- Residential Building: New-build residential projects can select S6 or E0 series for batch cost control while retaining thermal-break double glazing — confirm series-specific insulation strip dimensions against project energy targets.
- Exterior: Exterior facade applications require verification of wind pressure resistance, water tightness class, and fluorocarbon or powder coating finish compatibility with local climate — request test documentation for compliance review.
- Villa: High-end villa projects can leverage the S9's 44mm insulation strip and color options like Starry Black or Black Walnut to match architectural styling while achieving thermal and acoustic performance targets.
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
Why is the 72 x 36 casement window not recommended as a single sash?
The 1829mm overall width exceeds the safe operating range for a single outward casement sash. The recommended three-lite layout splits this into three approximately 24in (610mm) sections — center fixed for views, side sashes for ventilation.
Which series should I choose — S9, S6, or E0?
S9 suits high-end modern facades with its 109mm frame and 44mm insulation strip. S6 offers mid-range cost-performance with an invisible folding screen. E0 targets budget-sensitive batch projects that still require thermal-break double glazing.
What information do I need to prepare for a quote?
Provide opening dimensions, quantity, selected series, glass type, color and finish, opening direction, project destination, and packaging preference. Drawings or cross-section requirements help the 72 x 36 casement window supplier prepare an accurate quotation.
What is the minimum order quantity?
Platform pages indicate a common MOQ of approximately 2 square meters. For custom configurations — specific glass, colors, or hardware — confirm the exact MOQ with the supplier before finalizing your procurement plan.
What is the delivery time?
Platform data indicates approximately 25–35 days. This may vary by order quantity, glass configuration, color customization, and destination. Confirm the lead time for your specific order before committing to project schedules.
Are certifications available for project compliance?
The official website emphasizes CE, NFRC, CSA, and US/AU IGCC glass certifications. Buyers should request current certificate numbers and validity periods to verify applicability to their target market and selected product configuration.
Can I get specific U-value and SHGC ratings?
Specific U-value and SHGC depend on your glass configuration — argon gas, Low-E coating, and glass thickness all affect ratings. Confirm the exact values for your selected glass package with the supplier for energy compliance.
