Dimensions Guide

3
4
5
Measure for Rough Opening Height
Measure from the bottom edge of the mounting surface to
the existing threshold of your entry door and enter on the
measurement worksheet on the following page.
Y
Check Handle Height
Standard security door handle height is 39½". To check for
potential interference with your main entry door handle, measure
from the threshold to the center of the handle (Y). A measurement
within 38½"-40½" inches may result in interference. To ensure you
avoid interference issues in this instance, you may:
• Mount your security door with an opposite swing
• Build out the trim on your mounting surface to create clearance
Note: Paddle style handles feature a prole less likely to cause
interference than knob style handles… if measurements indicate
you may be close to an interference issue, keep this in mind when
selecting your security door handle set.
Measure for Rough Opening Width
Measure for the rough opening you identified in Step 2 (Figures 1-5). Measure the top,
middle and the bottom of the door opening. The smallest of the three measurements will
be your rough opening width. Enter that measurement on the measurement worksheet and
follow the instructions to determine if a standard size door will fit.
W1
W2
W3
Premium Security Doors
How to
Measure