





A 2 x 4 casement window (nominal 24 x 48 in / 610 x 1219 mm) from DERCHI's WY-72, WY-86, and WY-100 cranked-out window family. Built with a 6063-T5 aluminum profile and operated via hand crank, it is produced to your specified dimensions for residential and light commercial projects.
- Made-to-size production within a defined panel range
- Three frame depth options (72/86/100 mm) for varied glass packages
- Hand-crank operation suited for hard-to-reach installations

Product Details
The structure centers on a 6063-T5 aluminum profile with a 1.4 mm wall thickness, paired with EPDM rubber strip sealing. Double tempered glass comes standard, with WY-72 and WY-100 using 5+27A+5 mm spacing, while WY-86 uses 5+15A+5 mm. By offering three frame depths (72, 86, and 100 mm), the system lets buyers align glass spacing and structural depth with specific climate demands and project budgets.
The cranked-out casement sash operates via flat opening or top-hung hand-crank mechanics, solving ventilation and access challenges in tight floor plans. This is particularly useful above kitchen counters or stairwells where reach is limited. Made-to-size production within the 450-800 mm x 600-1500 mm opening panel range accommodates non-standard rough openings without forcing standard-size compromises.
Product Features
Aluminum Frame Stability: The 6063-T5 aluminum profile with 1.4 mm wall thickness provides a reliable structural foundation for residential and light commercial glazing projects.
Hand-Crank Operation: The crank mechanism allows controlled ventilation in hard-to-reach installations, such as above kitchen counters or behind furniture in compact rooms.
EPDM Sealing System: EPDM rubber strips along the frame and sash contribute to the window's air tightness and water resistance performance under normal weather conditions.
Tempered Glass Options: Double tempered glass with series-specific spacing supports sound insulation and solar control, with further upgrades available for energy performance.
Frame Depth Flexibility: Choosing between 72, 86, or 100 mm frame depths allows buyers to balance structural requirements, glass packages, and project budget constraints.
Made-to-Size Production: Manufacturing within the 450-800 mm x 600-1500 mm panel range supports project-specific opening dimensions without compromising on standard sizing.

Customizable Styles
Sash Layout: Single casement sash layout for standard openings, with left or right crank side selection based on project drawing requirements.
Composite Configurations: Fixed-plus-operable composite styles combining a fixed pane with an operable awning or casement for larger structural openings.
Frame Depth: Selection across 72 mm, 86 mm, or 100 mm frame depths to match the desired glass package and project-specific thermal targets.
Glass Packages: Options include double tempered, argon fill, warm-edge spacer, Low-E, laminated, or triple glazing upgrades, subject to series compatibility.
Color and Finish: Twelve standard color options plus PVDF fluorocarbon and wood grain finishes for project-specific architectural aesthetics.
Hardware Accessories
Hand Crank Operators: American hand crank for WY-72 series, or Australian hanging hand crank for WY-86 and WY-100 series, providing smooth sash control.
Lock Seats: Multi-point switch lock seat for WY-72, or single-point switch lock seat for WY-86 and WY-100, ensuring secure sash closure.
Limiters: Optional casement limiters available in simple or safety grades, offering controlled opening range for ventilation management and safety.
Top-Hung Hardware: Optional outward top-hung hardware set available for projects requiring top-hung operation instead of standard side casement action.
Sealing Hardware: EPDM rubber strip sealing system integrated along the frame and sash intersection to support air and water resistance performance.
Basic Parameters
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | U-Factor: 0.39, SHGC: 0.25 | Confirm thermal performance meets local energy code; glass upgrades available for higher requirements. |
Wind Pressure Resistance | 5 KPa | Confirm this meets local wind load requirements for the project location. |
Water Tightness | 350 Pa | Verify water resistance class suits project rain exposure zone and local code. |
Air Tightness | 4.5 m3/(m·h) | Confirm air leakage rate meets local building code air-tightness class. |
Sound Insulation | 30 dB | Confirm acoustic performance meets project needs; laminated or triple glass upgrades available. |
Product Specifications
Specification | Details |
|---|---|
Nominal Size | 24 x 48 in (610 x 1219 mm) |
Approximate Area | 0.74 m² |
Frame Material | 6063-T5 aluminum profile |
Profile Thickness | 1.4 mm |
Frame Depth Options | 72 mm / 86 mm / 100 mm |
Glass (WY-72) | Double tempered 5+27A+5 mm |
Glass (WY-86) | Double tempered 5+15A+5 mm |
Glass (WY-100) | Double tempered 5+27A+5 mm |
Sealing | EPDM rubber strip |
Opening Panel Range | W450-800 mm x H600-1500 mm |
Opening Method | Flat opening / top-hung, hand-crank operation |
Color Options | 12 standard colors + PVDF/wood grain optional |
Notes | Final specifications confirmed per project drawing and series selection. |

Advantages
Series Flexibility: Three series options with different frame depths and glass packages let buyers match structural and thermal performance to project budget.
Custom Sizing: Made-to-size production within the defined panel range supports non-standard opening dimensions without requiring costly custom tooling.
Access and Control: Hand-crank operation provides controlled ventilation in installations where physical reach or access is structurally limited.
Itemized Upgrades: An itemized upgrade path for glass, hardware, safety, and finish allows precise cost control per specific project requirement.
Export Packaging: Export-grade packaging with wooden frames, PE films, and air bags supports sea freight handling for international project orders.
Application Scenarios
Apartment: Compact 2 x 4 casement windows suit apartment kitchens and bathrooms where hand-crank operation enables ventilation in tight spaces with limited reach.
Home Office: Cranked-out casement design provides controlled airflow and natural light for home office spaces, supporting comfort during extended work hours.
Hotel: Made-to-size aluminum casement windows with multiple color and finish options integrate with hotel interior design while meeting performance requirements for guest room comfort.
Office Building: Hand-crank casement windows offer practical ventilation for office building perimeter zones where operable windows support occupant comfort and fresh air circulation.
Outdoor: Aluminum 6063-T5 frame with EPDM sealing and double tempered glass provides weather resistance for outdoor-facing enclosures exposed to rain and wind. Buyers should confirm local weather resistance requirements.
Residential Building: Multiple frame depth and glass package options allow residential projects to select performance levels matching local energy code and climate conditions.
Exterior: Cranked-out casement windows on exterior facades provide operable ventilation with controlled opening range via optional limiters. Confirm wind pressure and water tightness ratings meet local facade codes.
Villa: Customizable styles including fixed-plus-operable combinations and premium color finishes support villa projects requiring architectural coordination and specific performance specification.
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
How do I get a quote for a 2 x 4 casement window project?
Provide final drawings, series selection (WY-72/86/100), glass package, color, hardware, and screen preferences. DERCHI confirms pricing per project after drawing review. Indicative tiers exist but require verification.
What is the difference between WY-72, WY-86, and WY-100 series?
The three series differ by frame depth (72/86/100 mm) and glass spacing. WY-72 and WY-100 use 5+27A+5 mm glass; WY-86 uses 5+15A+5 mm. Selection depends on performance targets and budget.
Can I customize the opening direction and panel size?
Opening panel range is W450-800 mm x H600-1500 mm. Left or right crank side is selectable. Final layout depends on operation side and screen selection confirmation.
What glass upgrades are available?
Options include argon fill, warm-edge spacer, Low-E, laminated, and triple glazing. Each upgrade has a per-square-meter upcharge. Confirm compatibility with selected series before specifying.
What is the lead time and MOQ?
Official delivery terms reference 25-35 days. MOQ and exact lead time are confirmed per order after drawing and quantity review. Contact DERCHI for current production schedule.
Do certifications like NFRC, CE, or AS2047 apply to this product?
DERCHI holds multiple global certifications, but applicability to specific product series must be confirmed per the supporting certification page and project requirements.
How are windows packaged for export shipping?
Export packaging includes wooden frames, protective tape, pallet fixing, plastic belts, PE films against sea water, and air bags between pallets for international freight protection.

