Installation Sheet

Page 7
Cered 01/04/2017
QCI-5305 Rev 0
CENTERLINE MEASUREMENT
Our units are ordered based on nished centerline measurements of the locaon of
the unit.
To ensure a proper t, a centerline should be found and marked as shown below. To
start, lightly mark a connuous unit centerline on the threshold.
Next, mark a connuous unit centerline up each wall, starng where the threshold
centerline meets the wall. Use a level to ensure the wall centerline is plumb and
straight. The wall centerlines you mark should be a minimum of the unit height from
the threshold
Centerline is a term used to describe the center or mid-point of the unit. The
posion of the unit centerline can be located anywhere in the width of the
threshold, as long as adequate structure exists beneath the centerline for fastening
and the outer edges of the unit will not overhang the threshold. The most common
unit centerline posion is the middle of the threshold.
Centerline
Centerline
Unit Cross Secon