Standard Aluminum Single & Double Hung Window for North America

Vertical Ventilation in a Familiar North American Window Style

This aluminum double hung window is designed for residential, apartment, townhouse, modular, and light commercial projects that prefer vertically moving sashes and a traditional exterior appearance.

The system supports single-hung or double-hung configurations, Caldwell balancing hardware, fixed screen options, and insulated glass in a compact project-ready window.

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Upper sash can move down in a double-hung configuration

Lower sash moves up for everyday ventilation

1.6mm Aluminum Profile

350–1000mm Sash Width

600–2200mm Sash Height

25kg / 40kg Standard / Heavy-Duty Balancer

Caldwell Black or White Hardware

Why Builders Choose This Double Hung Window

The system keeps the operation familiar while giving project buyers practical size, screen, installation, and hardware options.

Single-Hung or Double-Hung Configuration

Select a single-hung layout for one operable sash or a double-hung layout when both upper and lower sashes need vertical movement.

Caldwell Balancing Hardware

American Caldwell hardware is supplied in black or white. Standard balancing supports 25kg, while a heavy-duty balancer supports 40kg.

Fixed Screen Options

Fixed stainless steel mesh or fiberglass mesh can be selected for ventilation while helping keep insects outside.

Project-Friendly Installation

Nail fin, mounting tabs, or screw installation can be selected to match new construction and project opening details.

Single and Double Hung Window Operation

The hung window section starts at approximately 15 seconds and shows the vertical sash movement used by this product type.

Configured for Residential and Light Commercial Window Packages

Send the window schedule, rough opening sizes, quantity, glass, strip arrangement, screen choice, and installation detail for review.

Product Configuration

Window type Single-hung or double-hung aluminum window.

Profile thickness 1.6mm.

Standard hardware Caldwell balancing hardware in black or white.

Sash size 350–1000mm wide × 600–2200mm high.

Sash capacity 25kg standard; up to 40kg with the heavy-duty balancer.

Standard glass 5mm + 12A + 5mm insulated glass.

Strip arrangement The V2 specification lists interior, center, or exterior strip placement with the 5mm + 12A + 5mm IGU.

Screen Fixed stainless steel mesh or fiberglass mesh.

Installation Nail fin, mounting tabs, or screws.

Available layouts Single-hung, double-hung, and side-by-side fixed combinations.

Estimated Performance References

≥0.52 Estimated U-Factor
BTU/(h·ft²·°F)

300Pa Estimated Water Resistance

0.3 L/s·m² Estimated Air Leakage

≤3000Pa Estimated Wind Pressure Resistance

30dB Estimated Sound Insulation

1.6mm Aluminum Profile

All performance figures are estimated values from the latest AMJ product specification V2 dated July 23, 2026. Final results depend on window size, glass, configuration, installation, and the applicable project test report.

Single-Hung

One sash moves vertically while the other remains fixed.

Double-Hung

Upper and lower sashes can move vertically.

Side-by-Side Combination

Hung windows can be combined with adjacent fixed units.

Our Strength

Production Process Project Services Certificates

1. Checking & Alignment

2. Cutting & Punching

3. Milling Holes

4. Assembly

5. Glass Assembly

6. Packaging

7. Delivery

8. Installation

Drawing & Engineering Review

Sample Support

Quality Inspection

U.S. Showrooms

48-Hour On-Site Support

Warranty Service

NFRC

CSA

ENERGY STAR

ISO

Key Differences Between the Two Hung Window Systems

Only the specifications that differ are shown below, making it easier to choose the right system.

Comparison	Standard Aluminum Double Hung Window CURRENT	Large-Format Aluminum Double Hung Window
Profile Thickness	1.6mm	1.8mm
Sash Width	350–1000mm	350–1200mm
Sash Height	600–2200mm	600–3000mm
Sash Capacity	25kg standard / 40kg heavy-duty balancer	40kg
Estimated U-Factor	≥0.52 BTU/(h·ft²·°F)	≥0.48 BTU/(h·ft²·°F)
Installation	Nail fin / mounting tabs / screws	Nail fin / mounting tabs
Available Layouts	Single-hung / double-hung / side-by-side fixed combination	Top fixed + lower hung / upper hung + lower fixed / double-hung / side-by-side fixed combination
Published System Dimensions	Not listed in the current V2 specification	128mm depth; 55mm vertical frame; 55.1mm top frame; 24mm thermal break; 43.5mm bottom frame; 40.3mm meeting rail

Frequently Asked Questions

What are the main advantages of this double hung window?

It provides familiar vertical sash operation, Caldwell balancing hardware, single-hung or double-hung configurations, fixed screen options, and project-friendly nail fin or tab installation.

Can it be ordered as single hung or double hung?

Yes. Single-hung and double-hung configurations are available. Side-by-side combinations with fixed windows can also be reviewed.

How is the sash capacity selected?

The standard balancing system supports 25kg. A heavy-duty balancer can support up to 40kg. Final hardware selection depends on sash size and glass weight.

What glass and strip arrangements are listed?

The standard glass is 5mm + 12A + 5mm insulated glass. The V2 specification lists interior, center, or exterior strip placement.

What information should I send for a quotation?

Send the project location, rough opening sizes or window schedule, quantity, single-hung or double-hung layout, color, glass, screen, installation detail, and delivery ZIP code to info@amjbm.com.

What is the minimum order quantity?

We offer flexible MOQs. Sample sets can be reviewed before bulk production, and tiered pricing is available for full container load project orders.

Start Your Aluminum Double Hung Window Project

Send your drawings, window schedule, rough opening sizes, or BOQ for sash sizing, balancer selection, screen options, and project pricing.

Request a Project Quote Chat on WhatsApp

Here are the key questions project buyers, contractors, developers and distributors usually ask before working with AMJ.

Are you a factory?

Yes. AMJ is a factory-based aluminum window and door manufacturer in Guangdong, China, with our own production plant, technical team, equipment, QC process, and export packaging system.

What should I send for a quotation?

Please send project drawings, window and door schedule, sizes, quantities, glass requirements, frame color, hardware options, project location, and expected delivery time.

Can you customize products according to project drawings?

Yes. We can customize sizes, opening styles, glass, colors, hardware, and system solutions according to your drawings and project requirements.

Are your products suitable for export projects?

Yes. We provide aluminum window and door solutions for residential, commercial, and custom projects, and can match suitable configurations according to different market requirements.

Do you have certifications or test reports?

Yes. AMJ has NFRC, CSA and ISO management system certifications, and experience with AS2047 / AGWA requirements for the Australian market. Project-specific testing can also be arranged if needed.

What types of aluminum windows and doors do you offer?

We offer casement, sliding, awning, double hung, tilt-turn windows, as well as sliding, casement, bi-fold, pivot and other aluminum door systems.

How do you control quality before shipment?

Before shipment, we check profiles, glass, hardware, dimensions, surface finish, opening operation, sealing, assembly quality, and packaging. Photo/video inspection or third-party inspection is also available.

How do you package products for export?

We use reinforced export packaging, protective film, corner protection, foam, crates or steel frames, and clear job-site labels to reduce damage and support easier installation.

What is your normal production lead time?

Normally, production takes around 25–35 days after drawings, specifications, payment terms, and production details are confirmed. The exact lead time depends on order quantity, product system, glass, color, and hardware configuration.

What warranty and after-sales support do you provide?

AMJ provides up to 10 years product warranty depending on the product system, glass, hardware, and project conditions. We also provide installation guides, installation videos, technical support, spare parts support, and project follow-up service.

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Foshan AMJ Windows and Doors Co., Ltd.

Standard Aluminum Single & Double Hung Window

Standard Aluminum Single & Double Hung Window

Vertical Ventilation in a Familiar North American Window Style