Chamberlain CG40DM User Manual
Page 24
24
ONE-PIECE DOORS
Please read and comply with the warnings and
reinforcement instructions on the previous page. They
apply to one-piece doors also.
• Center the door bracket on the top of the door, in line
with the header bracket as shown. Mark either the left
and right, or the top and bottom holes.
• Metal Doors: Drill 3/16" pilot holes and fasten the
bracket with the 1/4"-14x5/8" self-threading screws
provided.
•
Wood Doors: Drill 5/16" holes and use 5/16"x2"
carriage bolts, lock washers and nuts (not provided) or
5/16"x1-1/2" lag screws (not provided) depending on
your installation needs.
NOTE: The door bracket may be installed on the top edge
of the door if required for your installation. (Refer to the
dotted line optional placement drawing.)
HARDWARE SHOWN
ACTUAL SIZE
Self-Threading
Screw 1/4"-14x5/8"
WOOD DOOR HORIZONTAL
AND VERTICAL
REINFORCEMENT IS NEEDED
FOR LIGHTWEIGHT GARAGE
DOORS (FIBERGLASS,
ALUMINUM, STEEL, DOORS
WITH GLASS PANEL, ETC.).
(NOT PROVIDED)
Door
Bracket
Door
Bracket
Self-Threading
Screw 1/4"-14x5/8"
Top of Door
(Inside Garage)
Top of Door
(Inside Garage)
Optional
Placement
Optional
Placement
Top Edge
of Door
Top Edge
of Door
Nut
5/16"-18
Lock Washer 5/16"
Carriage Bolt
5/16"x2"
(Not Provided)
For a door with no exposed framing, or for the
optional installation, use lag screws 5/16"x1-1/2"
(Not Provided) to fasten door bracket.
METAL DOOR
WOOD DOOR
Vertical
Centerline of
Garage Door
Door
Bracket
Optional
Placement of
Door Bracket
2x4 Support
Header Wall
Header
Bracket
— Finished Ceiling —