One-Piece Door - Chamberlain Series 1200 Owner's Manual

Read the Safety Instructions on page 12. They also apply to doors without tracks.
• Close the door and mark the
inside vertical centerline of
your garage door. Extend the
line onto the header wall
above door.
If headroom clearance is
minimal, you can install the
header bracket on the ceiling.
See page 14.
• If you need to install the
header bracket on a 2x4 (on
wall or ceiling), use lag screws
(not supplied) to securely
fasten the 2x4 to structural
supports as shown.
Door
Jamb
Hardware
Hardware
Door
One-piece door without track
Jamb
Hardware
jamb hardware
• Open your door to the highest point of travel as
shown. Measure the distance from the top of the
door to the floor. Subtract the actual height of the
door. Add 8" to the remainder. (See Example).
• Close the door and draw an intersecting horizontal
line on the header wall at the determined height.
If the total number of inches exceeds the height
available in your garage, use the maximum
height possible, or refer to page 14 for ceiling
installation.
Proceed to Step 2, page 14.
ONE-PIECE Door Without Track
Header Wall
Header Wall
Highest Point
Highest Point
of Travel
of Travel
Door
Header Wall
Highest Point
of Travel
Jamb
Header Wall
Header Wall
Vertical
Vertical
Centerline
Centerline
Header Wall
Vertical
Centerline
Vertical
Vertical
2x4
Centerline of
Centerline of
Garage Door
Garage Door
Vertical
Centerline of
Garage Door
Distance from top of door
(at highest point of travel) to floor...........................92"
Actual height of door ...........................................– 88"
Remainder................................................................4"
Add ........................................................................+ 8"
Bracket height on header wall.............................= 12"
(Measure UP from top of CLOSED door.)
13
2x4
2x4
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
Header
Header
Wall
Wall
Door
Door
Highest Point
Header
Wall
Pivot
Pivot
Door
One-piece door without track
pivot hardware
Pivot
EXAMPLE
Unfinished
Unfinished
Ceiling
Ceiling
Structural
Structural
Supports
Supports
Unfinished
Ceiling
2x4
2x4
Structural
OPTIONAL CEILING MOUNT
Supports
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
FOR HEADER BRACKET
2x4
Highest Point
Highest Point
of Travel
of Travel
of Travel