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How to Measure for the Call Size of Exterior Doors

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We carry several standard sizes for exterior doors.

Before you order a door, it is very important to determine the "call size" of the door you will need.

The call size is simply the width and height of the stud-to-stud rough opening
in the wall where the entire door (including the frame) will be installed.

This rough opening may be hidden from view by your existing
door and frame, so here is how you can arrive at a call size
without exposing the wall's rough opening.
 

 

Method for
Out-Swing Doors
Method for
In-Swing Doors
Method for
Storm Doors
◄ For width open your door and measure the inside aluminum frame from side to side. Round up to nearest even number of inches. The rough opening in the wall is directly right behind this frame. ◄ For width measure the inside jamb (this is the space between your storm door and your in-swing door) from side to side, add two inches, and then round up to nearest even number of inches. ◄ For width measure the inside jamb from side to side  (this is the space between your storm door and your in-swing door), add two inches, and then round up to nearest even number of inches.
◄ Now for height measure the inside aluminum frame from header down to the threshold and round up to the nearest even number of inches. ◄ Now for height measure the inside jamb from header down to the threshold, add two inches, and then round up to the nearest even number of inches. ◄ Now for height measure the inside jamb from header down to the threshold, add one inch, and then round up to the nearest even number of inches.

 

To be more certain about determining the call size,

we recommend that you measure your existing door as many ways as possible.

We will help you cross reference your measurements and determine the call size for your door.

Note: Some mobile homes that were made before 1985 may have obsolete call sizes!

If you still need help, please contact us with your measurements, and we will help you!

How to Identify Left or Right Hinge: Look at the door from the outside of the home.

The side with the hinges determines left or right.

(Example: hinges on the right, right-hinged door)

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