Casement Windows
Clean Sightlines. Strong Sealing. Modern Appeal.
Custom timber casement windows remain a favourite in architect-designed homes for one simple reason: they work beautifully — visually, structurally, and environmentally.
Hinged at the side and opening outward, casement windows deliver clear, uninterrupted glass areas, excellent natural ventilation, and some of the strongest weather sealing available in any operable window system. When crafted properly, they offer a refined balance of performance and proportion.
At BTDW, our timber casement windows are custom made to suit the architecture, the climate, and the way the home is meant to be lived in.
Custom timber casement windows, proportioned to suit the architecture of the home.
Custom Timber Casement Windows Designed to sit comfortably within Queenslander architecture.
Crafted by BTDW to preserve light, airflow and the character of the home.
Why architects specify casement windows
Casement windows are widely used across contemporary, coastal and energy-focused homes — and are equally at home in refined Queenslanders where airflow, symmetry and classic proportions matter.
Key advantages include:
- Clear, unobstructed sightlines
- No central mullions or meeting rails interrupt the glass, allowing views and light to take priority.
- Excellent ventilation control
- The full sash opening captures breezes efficiently — particularly effective for cross-ventilation in Queensland conditions.
- Superior weather sealing
- Compression seals pull tightly against the frame when closed, offering excellent resistance to wind, rain and dust.
- Slim, elegant profiles
- When correctly detailed, casement windows maintain clean lines without visual heaviness.
Timber casement windows — crafted for performance
Timber is uniquely suited to casement window design. Its inherent strength allows for slim profiles while maintaining rigidity, and its natural insulating properties contribute to improved thermal comfort.
Every BTDW casement window is:
- Custom sized to suit the opening — never forced into standard dimensions
- Built from premium, carefully selected timbers
- Engineered for smooth, precise operation
- Designed to sit comfortably within both modern and heritage-influenced architecture
The result is a window that feels intentional not applied.
Hardware, Detailing and Longevity
Like all operable windows, the longevity of a casement window is defined by its detailing.
We specify quality hardware, robust hinges, and proven sealing systems to ensure long-term performance.
Hardware selection can be tailored to suit the aesthetic from understated contemporary finishes to more traditional profiles where appropriate.
Every detail is considered for durability, ease of use, and visual restraint.
All BTDW casement windows are locally made by BTDW craftsmen, allowing complete control over proportion, detailing and finish.
This bespoke approach enables us to:
- Align window sizes precisely with architectural intent
- Maintain consistency across mixed window types
- Respond to site-specific constraints early in the design process
- Deliver joinery that integrates seamlessly with the home as a whole
We work closely with architects, builders and homeowners to ensure each casement window feels resolved — not compromised.
A considered choice, executed properly Casement windows are deceptively simple. When designed and built well, they quietly elevate a home through clarity, performance and proportion.
If you’re specifying timber casement windows for a new build or renovation, BTDW can assist with early design input, technical guidance and custom manufacturing to suit your project.
Talk to us about casement windows designed for your architecture.
into Queenslander architecture.