LARSON Storm Doors America's #1 Selling Storm Door

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How to Install - Measuring

Measure the opening width (horizontally) as shown, referring to the following diagrams 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) as shown (D). Record the narrowest dimension.

Doorway Opening Size Guide

Storm door measuring guide
Doorway Opening Size Guide
Standard Door Sizes Min Width Max Width Min Height Max Height
30" x 81" 29-7/8" 30-3/8" 80" 81"
32" x 81" 31-7/8" 32-3/8" 80" 81"
34" x 81" 33-7/8" 34-3/8" 80" 81"
36" x 81" 35-7/8" 36-3/8" 80" 81"
32" x 85" 31-7/8" 32-3/8" 84" 85"
34" x 85" 33-7/8" 34-3/8" 84" 85"
36" x 85" 35-7/8" 36-3/8" 84" 85"