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How to Measure for a Larson Storm Door

Measure the opening width (horizontally). Take three measurements, one across the top, middle and bottom of the door (A, B, C). Record the narrowest dimension. Measure the opening height (vertically). Record the shortest dimension.

1-in. wide x 1-in. deep mounting surface is required. Hinge-side shimming may be required to fit existing opening.

Updated on October 5, 2020

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