INSTALL THE HEADER BRACKET
Mark the Door Centerline
Sectional Door
1
7”
1-1/4”
Jamb Door
One-Piece Jamb Door
Close the door from inside the garage and mark the
vertical centerline of the door on the wall and the
top door panel
Mark a spot on the centerline of the
garage door, 1-1/4” above the highest
point of travel of the garage door
Use Lag Screws (Not Provided)
to attach the 2X4
Highest point of travel
1-1/4” above Highest
point of travel
Mark a spot on the
centerline of the garage
door, 7” above the highest
point of travel of the
garage door
Door Header
2X4
Header Bracket must be
secured to structural supports.
If appropriate support does not
exist, install a new support
using 2X4 board on drywall or
between 2 studs, with lag
screws (not provided). DO NOT
install header bracket over
drywall.
Concrete anchors must be used
if mounting header bracket or
2X4 into masonry.
Always call a trained door
systems technician if garage
door binds, sticks, or is out of
balance. An unbalanced garage
door might not reverse when
required.
Mark Above the Highest Point of Travel
2
Attach a 2X4 (if necessary)
3
If the calculated header bracket is above
the door header, attach a 2X4 between
two studs to install the header bracket.
-8-
Sectional Door
WARNING
WARNING
