Narrowest Stiles with Superior Thermal Performance


Slim Profiles Provides a Stunning Glass Façade when the unit is closed

The panel stiles and rails on the SL80/81 are available as narrow as 1 7/8" wide. When the system is closed, the stiles where the folding panels meet measure 4 1/8" (104 mm) providing maximum views and minimum vertical obstruction.

The system is offered with different profile options. The SL80 has a rounded softline profile and the SL81 has an angular profile.

Provides the Best Thermal Performance for an Aluminum Folding System

Superior U-Values are achieved with a specially designed web of polyamide plastic reinforced with glass fibers thermal break in panel and frame profiles that are 3 1/8" thick. Multi-chamber profiles with 1 3/16" wide quadruple thermal insulation and cavities can accommodate either double or triple insulated glass provides the best heat insulation meeting the latest European Energy saving regulations (EnEV).

High Air and Water Resistance

European testing with the higher weather performance sills for both inswing and outswing opening units achieved no leakage at 7.5 psf.

Superior Acoustical Performance

The SL80/81 system with the higher weather performance sill has been tested by an independent acoustic lab for acoustical performance. Using double insulated laminated glass (with an STC of 47) on both sides, the SL80/81 system achieved a unit STC of 45. Using double insulated glass (with an STC of 38), the SL80/81 system achieved a unit STC of 38.

Large Panel Sizes Possible

Frame heights up to 10’ tall and panel widths up to 3’2” are possible. View size chart maximum height and width combinations.

Size Chart


Floor Supported System

This system is ideal for applications where load-bearing capability of the header is a concern. The system’s main weight is carried by the floor track. The upper track is merely a guide.

Width/Height Adjustments

Even after installation, the hinges on the SL80/81 are adjustable in both vertical and horizontal directions. The folding glass doors can easily be height adjusted by about 8 mm which is important if building settling occurs. Stainless steel hinge pins and screws are used.

Life Cycle Performance

The SL80/81 system meets the European EN 1191 Class 3 classification where a unit is tested after 20,000 opening and closing cycles and is still functional.

Two Profile Choices

SL80 Profile Detail

Rounded softline design

SL81 Profile Detail

Angular edge design

German Engineering

NanaWall systems are designed in Germany, providing world-class quality and long-term reliability

Unique to You

Each NanaWall system is custom made to order based on your project and your personal preferences

Wide Openings

NanaWall folding systems can replace walls or doors up to 39’ wide, select systems can go even wider if desired

Built to Perform

NanaWall systems meet or exceed air, water, structural, and forced entry tests for weather, durability, and security


NanaWall systems offer a variety of material options and finishes to coordinate with any design

Ease of Operation

NanaWall systems offer single-handed operation and move smoothly with little effort

Download our brochures or place an order for printed ones.