Instructions / Assembly

10
STRUT REQUIREMENTS
TABLE 7-A: NON-INSULATED CLASSIC STEEL DOORS &
NON-INSULATED CONTEMPORARY STEEL DOORS
The table below shows the strut requirements for non-insulated steel
garage doors.
Door
Thickness
Door
Width
End Stile
Width
Section
Bottom 3rd* Top
1-3/8" Up to 14'10" All – – –
1-3/8" 15'–16' 2-1/2" – –
✓
1-3/8" 16'2"–18' 2-1/2" One strut per section
2" Up to 15' All – – –
2" 15'2"–20' All – –
✓
*Section with general safety label.
NOTE: Doors installed in high windload regions (Florida and other high
wind-prone areas) may require additional reinforcement. Refer to
Supplemental Windload Instructions.
TABLE 7-B: NON-INSULATED COMPOSITE OVERLAY DOORS
The table below shows the strut requirements for non-insulated composite
garage doors.
Door
Width
STRUT REQUIREMENT
Up to 2" Thick 2" Thick
Composite
Wood Full
Vision
Up to 9'0" None None None
9'2" to 12'2"
(1) 2-1/4" Strut
per door (top)
(1) 2-1/4" Strut
per door (top)
(1) 2-1/4" Strut
per door (top)
12'4" to 16'2"
(1) 2-1/4" Strut
per section
(1) 2-1/4" Strut
per section
(1) 2-1/4" Strut
per section
16'4" to 18'2"
(1) 3" Strut
per section
(1) 2-1/4" Strut
per section
(1) 2-1/4" Strut
per section
18'4" to 20'0" N/A
(1) 3" Strut
per section
(1) 3" Strut
per section
NOTE: Window Lite section on double car doors may be packaged with
two struts attached. Remove strut from bottom of window section and
place on top of section #3.
TABLE 7-C: NON-INSULATED STEEL CARRIAGE HOUSE DOORS
The table below shows the strut requirements for non-insulated Steel Carriage
House garage doors.
Door Thickness Door Width Struts Required
1-3/8" Up to 14'10" None
1-3/8" 15'–16'
(1) 2-1/4" Strut
per door (top)
1-3/8" 16'2"–18'
(1) 2-1/4" Strut
per section
2" Up to 15' None
2" 15'2"–20'
(1) 2-1/4" Strut
per door (top)