
Western Window Systems’ Simulated Steel Line was built with a single purpose: to enable professionals to incorporate the look of steel-framed moving glass doors and windows into their most demanding projects without constraint. The aluminum moving glass doors and windows that combine the look of real steel with the superior performance of aluminum, bring a new level of efficiency to every project. Designed and engineered for large panel sizes and exceptional performance, this line presents virtually limitless possibilities for customization.

Embodying nearly 60 years of advancements in door and window design, the thermally broken simulated steel line of moving glass walls and windows reaches new heights of luxury and refinement.

Choose made-to-order moving glass walls and windows that can be specified in wider and taller dimensions than thought possible. Options such as split finishes, screens and hardware allow for even more design flexibility.

Built with a signature aluminum extrusion design, across-the-board low U-value ratings and low-E, argon-filled dual-pane glass, Western Window Systems’ thermally broken simulated steel line is all about reducing energy consumption. A proprietary Insulbar profile assists in increased thermal performance and strength. All product families are NFRC-tested to a design pressure rating of 50 and support both laminated and security glass, which is essential for noise reduction.

Unlike steel doors and windows that can cost double the price of aluminum, require field glazing and include long lead times, Western Window Systems’ simulated steel line is all about inspiration, efficiency and value. The products are completely customizable and quick to produce. The pre-glazed systems also contribute to reducing the handling and installation time compared to similar products.


Designed with bevelled glass stops and coped muntin bars, the simulated steel line replicates the steel profiles used in many historic buildings, universities and commercial projects and can be seamlessly integrated into these projects.
Thermally broken aluminum, low U-values, and superior design pressure ratings mean that the simulated steel line has the strength and performance to bring the biggest ideas to life.