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How to Measure for the Call Size of Jamb-Mount Storm Doors

Important Note: Jamb-Mount Storm Doors and Flush-Mount Storm Doors measure and mount differently. Please go here to see images of a Flush-Mount Storm Door, to make the distinction between the two types.

We carry several standard sizes for jamb-mount storm doors. Before you order your storm 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 rough opening in the wall where the jamb-mount storm door will be installed. Here are the best ways to determine the call size without having to remove the door to get to the rough opening.

Method 1: Measure the width and height of the swing-out storm door only from the outside of your home, and use these charts to determine the call size.
Storm Door Width ► 30" 32" 34" 36"
Actual Call Size Width ► 32" 34" 36" 38"
Storm Door Height ► 71" 75" 77" 79"
Actual Call Size Height► 72" 76" 78" 80"

Method 2: If no storm door exists, you can measure the inside swing door only, open or closed, from edge to edge, and use the charts below to determine the call size. If your in-swing door is a 6-panel steel door, go here.
In-Swing Door Width ► 30 1/4" 32 1/4" 34 1/4" 36 1/4"
Actual Call Size Width ► 32" 34" 36" 38"
In-Swing Door Height ► 70" 74" 76" 78"
Actual Call Size Height ► 72" 76" 78" 80"

Method 3: You can also measure the extruded jamb where the storm door mounts. Measure from inside jamb to inside jamb for the width, and inside top jamb to the lowest part of the threshold for the height and refer to the charts below.
Jamb to Jamb Width ► 30 1/2" 32 1/2" 34 1/2" 36 1/2"
Actual Call Size Width ► 32" 34" 36" 38"
Jamb to Threshold Height ► 70 1/2" 74 1/2" 76 1/2" 78 1/2"
Actual Call Size Height ► 72" 76" 78" 80"

To be more certain about determining the call size, we recommended 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.

Important: The measurements on this page correspond to the Phillips brand of doors, the only brand we carry. A Phillips door can in most cases replace another brand, but bear in mind your measurements may be different than those listed on this page. 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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