How To: Measure Visible Glass

How to Measure Visible Glass

Visible glass dimensions can be determined by measuring the width and height of the exposed glass from inside the home.

IMPORTANT: All dimensions are specified as WIDTH X HEIGHT.

Measurements within + 1/4” should be rounded to the nearest standard size as listed in the table below. Visible glass dimensions that are greater or less than 5/16” of a standard size means it is a custom sized window.



For Double Hung windows, the bottom sash should be measured.


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