Sizing details: Sashes can typically be manufactured to a width range of 350 mm minimum up to 764 mm maximum for side-hung sashes, and similar scaling for top-hung, depending on the project.

For outer frames, Spectus’s standard spec document gives minimum outer frame dimensions of 200 mm and maximum outer frame heights of 3000 mm for windows unless other constraints apply. 

Key details:

• 70mm profile system
• Chamfered bevel design for a clean, modern look
• Excellent thermal performance with U-values as low as 1.2 W/m²K (with triple glazing)
• Fully PAS 24 and Secured by Design compliant
• Wide choice of colours, foils, and hardware options

The Spectus Elite 70 bevel casement window delivers a crisp, contemporary finish with its distinctive chamfered profile, making it a popular choice for modern homes and commercial projects. Combining sharp sightlines with robust performance, it offers installers and developers a proven system that balances style, strength, and efficiency.

Built on the trusted 70mm frame depth, this versatile system suits both new build and replacement installations. The multi-chambered design enhances insulation and achieves Part L-compliant U-values, while durable weather seals ensure long-term performance in all conditions.

Security is integral to the system, with full PAS 24 certification and Secured by Design options available, giving end users confidence and peace of mind. A wide selection of colours, foils, glazing, and hardware choices allows every project to be tailored to exact specifications, ensuring a perfect match for any property style.

Reliable, installer-friendly, and designed for lasting performance, the Spectus Elite 70 bevel casement window is a high-quality solution for trade professionals who want a product that combines modern design with trusted manufacturing standards.