Sliding Window | H900 x W1800

An aluminium sliding window measuring 900mm high by 1800mm wide is a versatile residential window engineered for kitchens, bedrooms, bathrooms, and dining rooms. Standing at 900mm tall by 1.8 metres wide, this H900 x W1800 unit features two horizontal sashes that glide smoothly along an integrated track to provide controlled airflow and bright natural daylight. Built from heavy-duty Australian aluminium, it delivers dependable weatherproofing, low-maintenance operation, and clean architectural sightlines for new home builds and renovations.

Why Choose an H900 x W1800 Sliding Window?

When you are planning window placement for a renovation or a new residential build, an H900 x W1800 sliding window provides an ideal balance of privacy, wall space, and natural light. The 900mm height is especially practical for kitchen walls because it sits comfortably between standard kitchen benchtops and overhead cupboards. You can position your kitchen sink, splashback, or preparation area right in front of the glass while enjoying a broad view of your garden. It is also a popular choice for bedrooms, allowing you to place bed heads or desks below the sill without blocking the window.

The 1800mm width offers a generous span of glass that brightens interior rooms without requiring multiple vertical mullions to support the frame. Because the sashes slide horizontally inside the track, the window never projects outward over garden beds, patios, or exterior pathways when open. Inside your home, the operable sliding sash stays completely clear of curtains, roller blinds, and plantation shutters. You gain practical everyday ventilation and uncluttered outdoor views in a reliable design that every member of the household can operate with ease.

Technical Specifications & Features

• Dimensions: 900mm height x 1800mm width (H900 x W1800 overall frame size).

• Frame Profile: Heavy-duty Australian architectural aluminium engineered to prevent twisting, frame rattling, and structural deflection 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 improved thermal efficiency, Satinlite Obscure glass for bathroom 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, peeling, and fading under harsh Australian sun.

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

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

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

Built for Australian Climate & Lifestyle

We engineer this H900 x W1800 aluminium sliding window to withstand extreme Australian weather conditions. Our aluminium frame profiles feature reinforced mullions and sturdy bottom tracks designed to maintain their structural shape over decades of daily 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 window size is particularly useful for homes that need dependable cross-ventilation in functional working rooms like kitchens and laundries. Unlike timber frames that can absorb moisture and swell above a steaming sink, powder-coated aluminium remains completely stable and low-maintenance. A quick periodic wipe of the sill and tracks is all you need to keep the rollers moving freely year after year.

How to Configure Your H900 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 kitchen renovations, Custom Black powder coating creates a sharp outline around your outdoor view. Traditional brick or rendered properties often look best with Pearl White for a classic, clean aesthetic.

Because an H900 x W1800 window features 1.62 square metres of glass surface area, your glazing choice 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. If you are installing this unit in a shared bathroom or ensuite, selecting Satinlite Obscure glass gives you complete visual privacy while still letting in bright daylight. You can also add custom insect screens or stainless steel security screens so you can leave your window open for cooling breezes 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

Where is an H900 x W1800 sliding window commonly installed? This size is popular for kitchens, bedrooms, dining areas, and large bathrooms. The 900mm height leaves plenty of room beneath the sill for kitchen benchtops or furniture, while the 1800mm width lets in plenty of natural daylight and fresh air.

What rough stud opening size do I need for an H900 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 920mm height by 1840mm width allows adequate room for squaring, plumbing, and packing during installation.

Can I use an H900 x W1800 window above a kitchen sink? Yes. This dimension is widely used above kitchen sinks and benchtops because the 900mm height fits neatly between the counter and overhead cabinetry. The sliding mechanism makes it easy to reach over the sink and slide the window open for fresh air.

Order Your Custom Sliding 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.