1. Window Lite
Glazed sections with various types
of glass or clear acrylic to allow for
light and visability.
2. Sections Steel panels reinforced with
stiles interconnected with
hinges and rollers.
3. Bottom Bracket A structured support which
provides for attachment of
lifting cables
4. Cable Drum Grooved drums on the torsion
spring shaft that lifting cables
wind around when door is opening.
5. Torsion Springs Provides the means to raise
and lower the garage door via
cable winding on drums.
6. Extension
Extends along both horizontal tracks.
7. Rear Track Hanger
8. Track Provides a guide for section to
raise or lower the garage door.
Track Types: Standard
Low Headroom
Track Components: Vertical Track: on eitherside of opening. Horizontal Track: attached to ceiling. Radius: curved track
Standard Heights: 7 feet high - 4 sections high
8 feet high - 5 sections high
Gauge = thickness of steel Lower is better. 24 gauge is thicker than 25 gauge.
Panels and Sections
Single Car (8–10' wide) ------------------------------Double Car (12–18' wide)
Single Car (8–10' wide)------------------------------ Double Car (12–18' wide)
Garage Measurements
Headroom Chart
4-1/2'–10" – low headroom track
10" – standard track/extension spring
12" – standard track/torsion spring
14" or more – required for operator
