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To prevent damage to garage door, reinforce inside of
door with angle iron both vertically and horizontally.
INSTALLATION STEP 11

Fasten the Door Bracket

Follow instructions which apply to your door type
as illustrated below or on the following page.
A horizontal reinforcement brace should be long
enough to be secured to two or three vertical
supports. A vertical reinforcement brace should
cover the height of the top panel.
Figure 1 shows one piece of angle iron as the
horizontal brace. For the vertical brace, 2 pieces of
angle iron are used to create a U-shaped support.
The best solution is to check with your garage door
manufacturer for an opener installation door
reinforcement kit.

NOTE: Many door reinforcement kits provide for

direct attachment of the clevis pin and door arm. In

this case you will not need the door bracket; proceed

to Step 12.

SECTIONAL DOORS
1.Center the door bracket on the previously marked
vertical centerline used for the header bracket
installation. Note correct UP placement, as
stamped inside the bracket.
2. Position the top edge of the bracket 2"-4" below
the top edge of the door, OR directly below any
structural support across the top of the door.
3.Mark, drill holes and install as follows, depending
on your door’s construction:

Metal or light weight doors using a vertical angle

iron brace between the door panel support and

the door bracket:

• Drill 3/16" fastening holes. Secure the door bracket
using the two 1/4"-14x5/8" self-threading screws.
(Figure 2A)
• Alternately, use two 5/16" bolts, lock washers and
nuts (not provided). (Figure 2B)

Metal, insulated or light weight factory reinforced

doors:

• Drill 3/16" fastening holes. Secure the door bracket
using the self-threading screws (Figure 3).

Wood Doors:

• Use top and bottom or side to side door bracket
holes. Drill 5/16" holes through the door and secure
bracket with 5/16"x2" carriage bolts, lock washers
and nuts (not provided). (Figure 4)

NOTE: The 1/4"-14x5/8" self-threading screws are

not intended for use on wood doors.

CAUTION
Vertical
Centerline
Door
Bracket
Location
Header
Bracket
HORIZONTAL AND VERTICAL
REINFORCEMENT IS NEEDED
FOR LIGHTWEIGHT GARAGE
DOORS (FIBERGLASS,
ALUMINUM, STEEL, DOORS
WITH GLASS PANEL, ETC).
(NOT PROVIDED)
Door
Bracket
Vertical
Centerline
UP
Vertical
Reinforcement
Self-Threading
Screw
1/4"-14x5/8"
Door
Bracket
Nut
5/16"-18
Bolt
5/16"-18x2"
Lock Washer
5/16"
Vertical
Centerline
UP
Vertical
Reinforcement
UP
Vertical
Centerline
Self-Threading
Screw
1/4"-14x5/8"
UP
Inside Edge
of Door or
Reinforcement Board
Bolt
5/16"x2"
Vertical
Centerline
Figure 1
Figure 2A
Figure 2B
Figure 3
Figure 4
Self-Threading
Screw
1/4"-14x5/8"
HARDWARE
SHOWN
ACTUAL SIZE