Sizing a Andersen 400 Series Picture Window
So you have decided to install a Andersen 400 series picture window. You will want to make sure that you size it correctly by following the chart below The size of your Andersen window will depend on the type of window and the sash design. For instance, if you are installing Andersen storm windows, they will be smaller than an Andersen double-hung or casement style window The number in parenthesis represents the width of the opening. The height is measured from outside edge to inside edge.
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