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How to Measure a Window

Watch the video to see how our experts measure a window for a quick quote from Wonder Windows. It's pretty easy but if you need help the Wonder TEAM is here to help!

You can do it!

Get your tape measure and follow the instructions to get the width and height of each window you plan to replace.

Don't worry about measuring perfectly. It is just for your estimate.

(if you like our price we'll send an expert to do the final measurements.)

How to Measure the Width of a Window

To Measure Width: 

With the window open, measure the distance between the left jamb and right jamb. Inside the track where the window sash slides up and down.

How to Measure the Width of a Window

How to Measure the Height of a Window

To Measure Height:

With the window open measure from the lowest point of the bottom of your window sill to the top of the window opening (header) inside the top of the frame.

How to Measure the Height of a Window