Generation 4 Folding Glass Walls

A Transformational Product Family Made by Originals, for Originals
Generation 4 walls are engineered with a host of features and benefits never before seen in our industry. Their next-level performance features effortless operation, and field-tested security that stands up to the harshest weather and use. Meanwhile, the industry’s sleekest aesthetics inspire transformative design, featuring striking panels in solid wood, aluminum, or clad.
The Best-Performing System Ever
We’ve tested our panels over 20,000 operational cycles for decades of performance and built in innovations designed to handle wind, water, extreme temperatures, forced entry, and structural load.
Our Most Streamlined Designs
Besides offering the slimmest frames in the industry, Generation 4 also minimizes exposed hardware by concealing all visible frames to structure attachment points for a more streamlined appearance.
Even More Configuration Flexibility
The panels of our Generation 4 product have the option of moving in stacks of four or six—unattached to the side jamb, and possessing the ability to stack to the left, right or center of the opening.


FourFold and SixFold Panel Sets move and stack to an opening’s left, right, or center—adding more convenience for operators, and enabling widths beyond those of other bi-fold doors. Simultaneously, Floor Supported Technology reduces the need to modify headers on top.

A special multipurpose frame insert enhances aesthetics, by enabling all frame attachment points to be hidden—and provides a space where businesses and residences can conceal cable routing for security and lighting.

By reducing friction, our highly-advanced Gothic Arch Roller System enables panels to be slid open and closed by anyone—smoothly, quickly, and effortlessly.

Four sill options with removable inserts eliminate the concern of high-heeled shoes getting caught in tracks. In addition, our Flush and Low Profile Saddle sills are ADA-compliant (and easier on bare feet).

Our unique width adjustment feature maintains consistent seal compression, while guarding against alignment problems caused by settling.

Generation 4 walls feature the slimmest panels in the industry, with smoother, more streamlined surfaces (enhanced by our patented TwinX structural reinforcement, which helps to eliminate mid-level hinges).

Our exclusive Bionic Turtle® technology provides an insulating thermal break within the frame, adding extra comfort and energy efficiency. It also furnishes a concealed channel that houses locking rods—adding security and enabling slimmer profiles.
The panels of our Generation 4 product have the option of moving in stacks of four or six—unattached to the side jamb, and possessing the ability to stack to the left, right or center of the opening.
From the beginning, we’ve created not just walls, but innovations – opening doors for clients who share our passion for perfection. Now that we’ve taken our walls further than ever before, we can’t wait to see where they lead your design.
By unfolding new possibilities in exteriors and interiors, NanaWall transforms commercial spaces and residences alike—giving you the ability to elevate your next project from imagination to reality.
Any glass wall can show you a horizon. But only Generation 4 lets you explore new ones. Our reinvented systems are filled with features to create new possibilities.
Learn more about the individual products in our Generation 4 family.
NW Aluminum 640
Thermally Broken System Delivers Exceptional Energy Efficiency
NW Acoustical 645
First Floor Supported Folding Glass Wall To Control Sound Up To STC 45
NW Reinforced 647
Slim Aluminum Framed Folding Glass Wall for Mid-Rise Buildings
NW Aluminum 840
Our Most Thermally-Efficient Aluminum Framed Folding Glass Wall
Speak with a Glass Wall Consultant to Discuss Your Project Goals and Design Needs
Design Consultation