Four Sill Options

NW Aluminum 840 has four sill options: Hybrid, Low Profile Saddle, Low Profile Saddle with UniverSILL, and Flush. Standard to all sills is removable aluminum high heel resistant sill inserts.

Larger opening sizes

These are the only floor supported, thermally broken folding systems available that allow for larger opening sizes and flexible space management with the integration of FourFold or SixFold Panel Sets. These panel sets are able to move and stack either to the right, left, or center within the same track allowing the panels to be stacked in the most convenient location as needed.

Lighted option

A lighted option is possible; LED rope lights by others may be run under the sill insert to illuminate the way.

Swing Doors

To accommodate easy access, swing panels can be added either to the end of a chain of panels for systems with an odd number of panels folding in one direction or hinged to the side jamb, depending on unit height and configuration.

Unique Gothic Arch Roller

The running carriage rolls above the water table on two stainless steel wheels with a unique Gothic arch design supported by a double row of ball bearings. With a 2-point contact of each wheel to the floor track, the system glides quietly and smoothly with less friction by providing an equal distribution of weight on the stainless steel track.