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.
Most standard storm door sizes are 32" and 36" wide, some models are also available in 30" and 34".
Custom storm doors are available in many models, up to 8' high.
Enter your measurements below to determine
if your door is a Standard or Custom Size.
Select Width:
Select Height:
*Please note, all door openings are not created equally. Your door may require modifications based on several factors, including mounting surface. Please contact Customer Service or your dealer if you have any questions.