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REFER TO PAGES 2 & 3.
There are two basic types of residential garage
doors. They are:
SECTIONAL DOORS--divided into a set of
narrow panels (usually four) connected by
hinges, so door can "bend" as it rides on a
curved track.
1-PIECE DOORS--consist of one barge
panel and swivel on large spring-loaded hinges
on each side of door.
Determining header bracket location.
• Find center of door from side to side.
- Measure overall width of door.
(example: 16 feet)
- Divide overall width by 2.
(example: 16+2 = 8 feet)
• Measure this distance from side of door and
draw a pencil line vertically from the top of
the door down approximately 1 foot. This is
the centerline. Fig. 2-1.
- Continue marking centerline on wall
above door from top of door up
approximately 1 foot. Fig. 2-1.
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