Chamberlain C2405C Manuel D'installation page 19

Installation
STEP 8 Install the Door Bracket (continued)
OPTION B - ONE-PIECE DOORS
1. Center the door bracket on the top of the door, in line with the header bracket as shown.
2. 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 self-threading screws provided.

Wood Doors:
Drill 5/16" holes and use 5/16"-18x2" 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.)
Header Wall
2x4 Support
Header Bracket
Door Bracket
Optional
Placement
of Door
Bracket
Vertical
Centerline
of Garage
Door
Metal Door
Self-Threading Screw
Top of Door
Door
(Inside Garage)
Bracket
Top Edge of
Door
Optional
Placement
19
(Finished Ceiling)
For a door with no exposed
framing, or for the optional
installation, use lag screws
5/16"x1-1/2" (not provided)
to fasten the door bracket.
Wood Door
Hardware (not
provided)
Door
Top of Door
Bracket
(Inside Garage)
Top Edge of
Door
Optional
Placement
Hardware (not
provided)