Chamberlain 2000SDC-R - Manual (Page 9)

Header Wall
Vertical
Centerline
Vertical
Centerline of
Garage Door
2x4
Unfinished
Ceiling
Structural Supports
2x4
Header Support
OPTIONAL CEILING MOUNT
FOR HEADER BRACKET
• 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 10.
• 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.
EXAMPLE
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.)
Proceed to Step 2, page 10.
9
ONE-PIECE Door Without Track
• 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 10 for ceiling installation.
Door
Highest Point
of Travel
Header
Wall
Pivot
Distance
Header Wall
Highest Point
of Travel
Door
Floor Floor
Distance
Jamb
Hardware
One-piece door without track
pivot hardware
One-piece door without track
jamb hardware
Read the Safety Instructions on page 8. They also apply to doors without tracks.