Attach a 2x4 (if necessary)
If the calculated header bracket is above the door header, attach a 2x4 between two studs to
install the header bracket.
Door header
Use lag screws (not included) to attach
the 2x4.
Mark Above the Highest Point of Travel
Mark a spot on the
centreline of the garage
door, 1 1/4" (3 cm) above
the highest point of travel
of the garage door.
Mark a spot on the
centreline of the
garage door, 7”
(18 cm) above the
highest point of travel
of the garage door.
One-Piece Jamb Door
Highest point of travel
1 1/4" (3 cm) above
highest point of travel.
Sectional Door
7" (18 cm)
1 1/4" (3 cm)