NanaWall Launches Slimline Steel Effect Folding Glass Wall System

The new NW Aluminum 643 combines the look of steel with the performance of high-quality aluminum.

Published on Mar. 4, 2026

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NanaWall, a leader in opening glass wall technology, has introduced the NW Aluminum 643, an innovative folding door solution that combines a steel-like aesthetic with durable, high-performance aluminum construction. The system offers the visual option of traditional steel-framed doors while delivering enhanced thermal efficiency, security, and customization options compared to steel products.

Why it matters

The NW Aluminum 643 provides architects and homeowners a cost-effective way to achieve a steel-like appearance in their designs while benefiting from the superior thermal and structural performance of an aluminum folding glass wall system. This allows for greater design flexibility and energy efficiency, particularly in residential and commercial applications.

The details

The NW Aluminum 643 features slim profiles that rival thermally broken steel products, with specialized contemporary glass stops that deliver an ultra-slim, refined appearance. The system offers floating FourFold and SixFold panel sets that allow for unlimited widths, as well as customization options like simulated divided-lite patterns and steel-effect finishes. Key performance benefits include weather-rated, low-profile sills, high thermal efficiency with low U-values, and enhanced security with tamper-resistant locking bolts.

  • NanaWall introduced the NW Aluminum 643 in March 2026.

The players

NanaWall Systems

A leader in opening glass wall technology that has been developing and refining its glass wall systems for 40 years.

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What’s next

NanaWall will continue to showcase the NW Aluminum 643 and its other innovative folding glass wall solutions at industry events and through its network of dealers and distributors.

The takeaway

The NW Aluminum 643 from NanaWall demonstrates how advanced engineering and design can deliver the aesthetic of steel-framed doors with the superior performance and customization capabilities of an aluminum folding glass wall system, providing architects and homeowners greater flexibility in their projects.