2-Panel Aluminum Sliding Stacker Window | H900 x W2100

A 2-panel sliding stacker window is a high-performance architectural opening system where multiple glass sashes glide smoothly along parallel tracks to slide past one another, opening up a substantial portion of the structural wall. The Heavy-Duty 2-Panel Aluminum Sliding Stacker Window in H900 x W2100 from New Age Construction Group delivers a wide, unobstructed aperture, seamless indoor-outdoor connection, and dependable structural weatherproofing for Australian residential and commercial builds. Measuring 900 millimetres high by 2100 millimetres wide, this low-profile 2.1-metre wide dual-panel stacker is engineered specifically for kitchen servery counters, laundry splashbacks, and compact living room elevations where you want to maximize your open span without sashes swinging outward into walkways or decks.

Low-Profile Servery Utility and Smooth Multi-Track Operation

The primary performance advantage of a sliding stacker window over traditional single-slider or awning windows is its expanded opening capacity. While a standard two-panel sliding window restricts ventilation because one sash is permanently fixed over half the frame, an engineered stacker configuration allows the active sashes to glide across parallel tracks and stack neatly to the side. This transforms a 2.1-metre wall opening into a wide, unobstructed portal that floods the interior with natural light and welcomes exterior breezes.

In this low-profile 900-millimetre height format, the window is proportioned specifically to sit comfortably beneath overhead kitchen cabinetry or above standard splashback tiling, while the 2100-millimetre overall width fits cleanly into standard framing bays and brickwork modules. When fully opened, the generous 2.1-metre width creates an exceptional servery connection between an indoor kitchen and an outdoor barbecue deck or alfresco dining table. Food and drinks can be passed effortlessly across the sill, while the heavy-duty bottom roller system ensures that even large glazed sashes glide smoothly with minimal hand pressure. When closed, high-performance perimeter weather seals and interlocking meeting rails lock tightly against wind, rain, and acoustic intrusion.

Specifications and Features

• Exact Dimensions: 900mm Height x 2100mm Width, proportioned in a low-profile 2.1-metre wide dual-panel stacker configuration engineered to fit standard framing bays.

• Heavy-Duty Frame: Built from commercial-grade Australian aluminium engineered to support wide sashes without twisting, sagging, or structural deflection over time.

• Smooth Stacker Hardware: Equipped with heavy-duty adjustable bottom rollers, precision stainless steel tracks, and positive-action deadlock latches for effortless operation and security.

• Glass Selection: Choose from 6mm toughened Clear glass, Grey Tint for solar heat and glare reduction, Low-E thermal glass, or Satinlite Obscure glass for privacy.

• Powder-Coated Finishes: Available in Pearl White, Custom Black, or Custom Colour finishes applied to resist fading, chalking, and blistering under intense Australian UV radiation.

• Flyscreen Compatible: Designed with an integrated external screening channel that allows you to fit sliding insect screens or security mesh across the entire opening span.

• Certified Compliance: Tested and manufactured to meet AS 2047 requirements for Australian residential and commercial building compliance.

Where to Use an H900 x W2100 2-Panel Stacker Window

The 900mm by 2100mm footprint makes this window an ideal specification for homes designed around modern open-plan layouts and efficient kitchen serveries. Its low 90-centimetre height leaves ample wall space above the sill for cabinetry, task lighting, or splashback tiles, making it the premier choice for kitchen servery windows opening out to a veranda or alfresco patio.

This low-profile stacker format also excels in modern laundries, secondary living areas, and coastal sunrooms. Because the frame leaves solid wall space below the sill, builders frequently install these units across utility elevations to maximize cross-ventilation and visual connection to garden landscapes without requiring full floor-to-ceiling glass doors. Additionally, the option to add matching sliding flyscreens ensures you can keep the stacker panels wide open throughout summer evenings without letting insects inside.

Configuring Your Custom Window

Every building site has unique solar orientation and layout requirements, which is why we assemble each stacker window to order based on your exact specifications. Start by selecting your frame colour to match your existing doors, cladding, and architectural profiles across the property.

Next, choose your glass package. Standard Clear toughened glass provides maximum daylight transmission and crisp outdoor viewing for shaded or south-facing elevations. For north or west-facing walls exposed to intense afternoon sun, choosing Grey Tint glass helps soften harsh glare and reduce indoor heat accumulation. For boundary walls or street-facing elevations where privacy is required, Satinlite Obscure glass lets in natural sunlight while blocking external sightlines. If thermal performance is a priority, selecting Low-E glass helps reflect radiant heat and stabilize internal temperatures year-round.

Engineering, AS 2047 Compliance, and Climate Durability

Australian weather conditions can be uncompromising, ranging from coastal salt spray to scorching inland heat. Multi-sash sliding systems require exceptional structural integrity and robust drainage channels to prevent water pooling and air infiltration during severe storms. We manufacture our aluminium frames using thick-walled commercial profiles that comply with AS 2047 structural strength, wind deflection, and water penetration standards.

Every window is assembled, glazed, and inspected by our fabrication team before dispatch. Whether your job site is located in Sydney, Melbourne, Brisbane, or regional Australia, you receive a robust window system ready for straightforward installation into timber, steel, or brick-veneer frames.

Frequently Asked Questions

Why choose a low-profile 900x2100 stacker window for kitchens?

The 900mm height fits perfectly beneath overhead kitchen cabinets and above standard benchtops, while the 2100mm width provides an expansive opening for passing food and drinks through to an outdoor entertaining area.

Can I install flyscreens on an H900 x W2100 stacker window?

Yes. Our stacker window frames feature an integrated external track designed to accommodate matching sliding insect screens or security mesh, allowing you to ventilate your home freely while keeping bugs out.

What is the standard lead time for custom aluminium stacker windows?

Custom aluminium windows from New Age Construction Group are typically manufactured and dispatched within 12 to 15 working days. Every unit is made to measure and inspected for quality before shipping across Australia.

Order Your Custom Stacker Window Today

Select your frame colour and glass type above to configure your custom window. Need advice on bespoke sizing, screening options, or bulk trade orders for your job site? Contact our team for expert guidance on your next build.