Slimline Steel Effect

- Superior weather performance than steel
- Greater thermal performance than steel
- More advanced locking than steel
With the slim nature of Generation 4 products, NW Aluminum 640, NW Aluminum 840 can be customized with popular DB colors or Jet Black for a truly classic steel look while benefiting from the superior performance of an aluminum folding glass wall. Simulated divided lites can be specified in patterns of your choice.

Custom Simulated Divided Lites

Three Glass Stop Options

Extreme Weather Protection
Powder Coat Options
Choose from DB colors or Jet Black for a truly classic steel-looking folding glass wall. DB finishes include mica pigments that offer reflective, pearlescent, metallic values with a fine matte texture.




The slimline steel effect option offers all the benefits of our Generation 4 product line including the FourFold / SixFold floating panel set option and smooth operation with Gothic arch stainless steel rollers on a stainless steel track.
With 3 different glass stop options, and the ability to create the simulated divided lite pattern of your choice, this is the ideal solution for a steel look at a tremendous value and with a faster installation process with factory-installed glazing.
Explore Generation 4 Products
Aesthetics of Steel with the Advantages of Aluminum Folding Glass Walls
NW Aluminum 640
NW Aluminum 640 is a Generation 4 Aluminum Framed Folding Glass Wall. Very narrow-framed, floor supported system for energy-efficient performance.
NW Aluminum 840
NW Aluminum 840 is a Generation 4 Aluminum Framed Folding Glass Wall. Designed for taller heights, this very narrow-framed floor supported system also offers superior thermal performance.
Speak with a Residential Glass Wall Consultant to Discuss Your Project Goals and Design Needs
Design Consultation