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Preparing the Inside of the Door (LHR Shown)
1. DETERMINE and MARK the applicable bar height centerline (horizontal line) of the exit device on the
interior of the door.
2. DETERMINE the location of the latch end door template by using the bar height centerline of the exit
device and aligning the template with the mounting centerline (vertical line) of the door.
3. AFFIX the latch end door template to the door.
4. DETERMINE and MARK the hinge side preparation using dimension “A” as shown in the chart below.
5. IF standard door widths, as shown in the chart below, are not being used,
THEN CUT to proper length using Sizing the Exit Device chart on page 4.
6. MARK, CENTER PUNCH, DRILL all holes.
7. PREPARE door for cylinder and/or trim using Preparing the Door for Cylinder or Trim on page 5, if
required.
8. REMOVE the templates.
Standard Door Widths and Mounting Hole Spacing
Exit Device Length
Regular (R)
Midlength (M)
Long (L)
Standard Door
Opening Width
36”
42”
48”
Dimension “A”
33”
39”
45”
1-1/2” from
surface of strike
to mounting
centerline
Bar Height
Centerline
“A”
Mounting
Centerline
Drill 5/32”dia pilot
holes for self-tapping
screws, 2 places
Drill 5/32”dia pilot
holes for self-tapping
screws, 2 places
