Chamberlain Series 1200 - Manual (Page 21)

Horizontal and vertical
reinforcement is needed for
lightweight garage doors
(fiberglass, aluminum, steel,
door with glass panel, etc.).
Header Wall
Vertical
Centerline of
Garage Door
Finished Ceiling
Header
Bracket
2x4 Support
Door
Bracket
Door Brkt 1-piece CAN
Door
Bracket
Inside Edge
of Door or
Reinforcement Board
All ONE-PIECE Door Installation Procedure
• Center the bracket on the inside face of the door,
in line with the header bracket as shown. Mark
either the left and right, or the top and bottom
holes.
• Drill 5/16" pilot holes and fasten the door bracket
with hardware supplied.
21
Please read and comply with the warnings and reinforcement instructions on page 20.
They apply to one-piece doors also.
Carriage Bolt
5/16"-18x2-1/2"
Nut 5/16"-18 Lock Washer 5/16"
Boulon à tête bombée et à collet
carré de 5/16 de po-18x2-1/2 po
Écrou de
5/16 de po-18
Rondelle-frein
de 5/16 de po
Hardware Shown Actual Size