Measuring For A Storm Door
Don't get intimidated when it comes to preparing for your new storm door. We'll take you step-by-step through the measurements you'll need to ensure a perfect fit.
Follow the measuring guide below or watch the ‘How to Measure’ video. Record your measurements and take them to your nearest LARSON dealer.
Measure the opening width (horizontally) as shown below. 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.
How-To Measure For A Storm Door
Doorway Opening Size Guide
1-in. wide x 1-in. deep mounting surface is required. Hinge-side shimming may be required to fit existing opening. Use an appropriate shim thickness to reduce the opening to size noted. Shims are not included - household shim materials may include paint stir sticks or wooden yardsticks.