Premium Sliding / Fixed Window Combination | H1800 x W1800

A premium sliding and fixed window combination measuring 1800mm high by 1800mm wide is a large-format residential architectural window designed to frame wide outdoor views while providing natural ventilation. Standing at 1.8 metres square, this H1800 x W1800 unit combines a stationary picture-window pane with a smooth-rolling operating sliding sash. Built from heavy-duty Australian aluminium, it delivers maximum daylight, dependable weatherproofing, and flexible customisation for main living rooms, dining areas, and modern home renovations.

Why Choose an H1800 x W1800 Combination Window?

When you are designing a living area or master bedroom with a large 1800mm by 1800mm opening, standard sliding windows with equal moving sashes can clutter your view with thick central mullions. A sliding and fixed combination window solves this by dedicating one section to a fixed picture pane and the other to a functional sliding sash. This layout gives you a broad, uninterrupted sheet of glass that showcases your garden, deck, or backyard landscape.

The square 1800mm by 1800mm proportions create a striking architectural feature on both modern and traditional brick facades. Because the operable sash slides horizontally within the internal track, it does not project outward over garden beds or outdoor walkways. It also stays clear of indoor curtains, blinds, and plantation shutters. You get the visual impact of a large picture window alongside practical everyday airflow, all without sacrificing structural strength or weather resistance.

Technical Specifications & Features

• Dimensions: 1800mm height x 1800mm width (H1800 x W1800 overall frame size).

• Frame Profile: Heavy-duty Australian architectural aluminium engineered to support large glass spans and resist twisting under high wind loads.

• Glazing Options: Supplied standard with clear toughened safety glass. Configurable upgrades include Grey Tint for glare reduction, Low-E glass for thermal efficiency, Satinlite Obscure glass for privacy, and Double Glazing for superior acoustic and thermal insulation.

• Colour Finishes: Available in Pearl White, Custom Black, or Custom Colour powder-coated finishes formulated to resist chalking and fading under harsh Australian sun.

• Screen Options: Choose from No Screens, standard insect Flyscreens, Diamond Grille security screens, or heavy-duty Stainless Steel Security Screens.

• Hardware & Locking: Fitted with a keyed sash lock and heavy-duty adjustable nylon rollers for smooth operation and dependable home security.

• Weatherproofing: High-performance perimeter weather seals and internal frame drainage channels protect your interior sills from driving rain and dust.

Built for Australian Climate & Lifestyle

We engineer this large H1800 x W1800 combination window to withstand extreme Australian weather conditions. Because 1800mm square windows face significant wind pressure across their glass surface, our aluminium frame profiles feature reinforced mullions and heavy-duty tracks that maintain their structural shape over decades of use. Whether your property faces coastal salt air or hot western Sydney summers, the powder-coated finish will not rot, warp, or swell over time.

This square format works exceptionally well in open-plan living rooms, family dining areas, and architectural master bedrooms. Because one half of the window remains permanently fixed, the overall unit provides enhanced structural rigidity and fewer moving parts to maintain. You can place furniture, desks, or entertainment units directly beneath the sill without interfering with the operable sliding sash.

How to Configure Your H1800 x W1800 Window

You can customise every functional aspect of your window directly on this page to match your building plans. For contemporary architectural builds and modern extensions, Custom Black powder coating creates a crisp picture frame around your outdoor view. Traditional brick or rendered properties often look best with Pearl White for a classic, clean finish.

Because an 1800mm by 1800mm window contains a substantial 3.24 square metres of glass, your glazing selection makes a noticeable difference to daily indoor comfort. Standard clear toughened glass works well for shaded side yards and covered patios. If your window faces north or west and receives direct afternoon sun, upgrading to Low-E glass or Double Glazing helps regulate indoor temperatures and reduce your air conditioning costs. You can also add custom insect screens or stainless steel security screens to leave your window open for summer airflow with total peace of mind.

Certified Standards & Quality Guarantee

At New Age Construction Group, every aluminium window and door we manufacture complies with Australian Standard AS 2047. This certification guarantees tested wind resistance, structural deflection resistance, and water penetration resistance for residential building compliance across Australia.

We manufacture our aluminium windows at our Smeaton Grange base in NSW and deliver Australia-wide. Whether your project is in Sydney, Melbourne, Brisbane, Perth, Adelaide, or regional areas, you receive reliable trade-quality products ready for straightforward installation.

Frequently Asked Questions

Why choose a combination window over a standard sliding window? A combination window gives you a wider, clearer view through the fixed picture pane alongside functional ventilation through the sliding sash. It creates a cleaner architectural appearance than standard sliding windows where multiple vertical mullions break up the glass.

What rough stud opening size do I need for an H1800 x W1800 window? Your carpenter or builder should prepare a framed opening approximately 20mm taller and 40mm wider than the window frame. For this unit, a rough stud opening of 1820mm height by 1840mm width allows adequate room for squaring, plumbing, and packing during installation.

Is double glazing recommended for an H1800 x W1800 window? Yes. Because an 1800mm by 1800mm window has a large surface area of glass, double glazing is highly recommended to improve thermal insulation, keep rooms cooler in summer, and reduce outside traffic noise.

Order Your Custom Combination Window Today

Ready to bring more light and fresh air into your home? Choose your preferred frame colour, glass type, and screen upgrades above to view your instant price. For custom dimensions or bulk trade orders for an upcoming build, contact the New Age Construction Group team today.