A measurement of the unobstructed, or visible, glass on your Andersen® window or patio door can be helpful when ordering replacement parts or accessories for the product. The visible glass dimension (VGD) is the measurement of the glass you can see and touch within your window or door frame.

How to Measure Visible Glass

All Andersen® window and patio door glass is measured in width and height, as shown in the image below. This measurement will be helpful if you have to Contact Andersen® Windows and Doors to order replacement parts, replace your entire unit, or add accessories.

Width and Height Measurement

This Article Will Help You:

• Measure the visible glass of your window or patio door.

Tools and Supplies Needed

• Tape measure
• Notepad and pencil/pen

Let's Get Started

Measure the Visible Glass on a Window or Patio Door

Directions may vary slightly for single, double-hung, or curved windows. See below for window-specific details.

1. Stand inside your home next to the window or patio door you want to measure.
2. Hold the tape measure in the middle of the window or door and measure the width of the visible glass to the nearest 1/16 inch.
3. Write down that measurement.
4. Hold the tape measure in the middle of the window or door and measure the height of the visible glass to the nearest 1/16 inch.
5. Write down that measurement.

Imperial Tape Measure Illustration of 1/16 inch.

Double-Hung and Single-Hung Windows

1. Follow the above steps, one (1) through five (5), to measure both the upper and lower panes of the window.

Curved Windows

1. Follow the above steps, one (1) through three (3).
2. At step four (4), measure to the highest point of the curved window's visible glass to the nearest 1/16 inch.

Measuring Visible Glass Video

Reading a Tape Measure

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