In a Bi-fold Track System, the shutter panels are connected to top and bottom tracks which both support the hinged panels and guide their folding movement. Up to eight panels may be hinged together in a Bi-fold Track System.

A special frame is used with Bi-fold Track Systems, although the tracks may also be attached directly inside the door or window opening. In sliding door openings, the frames are usually three-sided, with the optional bottom track attached to
the floor.
Two Panel System

Bi-fold – 2 Right

Bi-fold – 2 Left

|
Width 2 1⁄2” |
Width 3 1⁄2” |
Width 4 1⁄2” |
Panel Height |
Minimum |
24″ |
24″ |
24″ |
20″ |
Maximum |
48″ |
52″ |
56″ |
120″ |
Four Panel System

Bi-fold – 2 Left / 2 Right

Bi-fold – 4 Left

Bi-fold – 4 Right

|
Width 2 1⁄2” |
Width 3 1⁄2” |
Width 4 1⁄2” |
Panel Height |
Minimum |
48″ |
48″ |
48″ |
20″ |
Maximum |
96″ |
104″ |
112″ |
120″ |
Shutter panels in a Bypass Track System are not hinged. Instead, they slide on top tracks to open and close. Two tracks are required so that the panels, or connected pairs of panels, can slide past each other. The tracks can be attached to a special Bypass frame or directly to the door or window opening.
In door openings, the frames are usually three-sided, with floor guides attached to the floor.
Note: Open Bypass available with 2 1/2” and 3 1/2 louvers.
Two Panel System

2 Bypass – 1 Left / 1 Right

|
Width 2 1⁄2” |
Width 3 1⁄2” |
Width 4 1⁄2” |
Panel Height |
Minimum |
24″ |
24″ |
24″ |
20″ |
Maximum |
68″ |
72″ |
80″ |
120″ |
Four Panel System

Bypass – 2 Left / 2 Right

Bypass – Center

|
Width 2 1⁄2” |
Width 3 1⁄2” |
Width 4 1⁄2” |
Panel Height |
Minimum |
48″ |
48″ |
48″ |
20″ |
Maximum |
136″ |
144″ |
160″ |
120″ |