Chamberlain 1150, 1160, 80ad, 1140, 1146, 1156, 1145, 120ad, 1155 ONE-PIECE Door Without Track, Example

ONE-PIECE DOOR WITHOUT TRACK

1.Close the door and mark the inside vertical centreline of your garage door. Extend the line onto the header wall above door, as shown.

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 40mm reinforcement board (on wall or ceiling), use lag screws (not provided) to securely fasten the 40mm reinforcement board to structural supports as shown. If installing into masonry, use concrete anchors (not provided).

2.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 200mm to the remainder.

(See Example).

3.Close the door and draw an intersecting horizontal line on the header wall at the determined height.

If the total number of millimeters exceeds the height available in your garage, use the maximum height possible, or refer to page 14 for ceiling installation.

EXAMPLE
Distance from top of door
(at highest point of travel) to floor	2300mm
Actual height of door	-2100mm
Remainder	200mm
Add	+200mm
Bracket height on header wall	=400mm
(Measure UP from top of CLOSED door.)

Proceed to Step 2, page 14.

	Unfinished
	Ceiling
	40mm
	Reinforcement	Structural
Header	Board
		Supports
Wall	Vertical
	Centreline
		40mm
		Reinforcement
		Board
		OPTIONAL
		CEILING MOUNT
		FOR
		HEADER BRACKET
	Vertical
	Centreline
	of Garage
	Door

	Header Wall
	Highest Point
	of Travel
Door
Jamb	Distance
Hardware
	Floor

One-piece door without track: jamb hardware

	Highest Point
	of Travel
	Header Wall
Door	Distance
	Pivot
	Floor

One-piece door without track: pivot hardware

114A2845 13