LARSON Storm Doors America's #1 Selling Storm Door

How to Buy - 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 shortest dimension.

Doorway Opening Size Guide

Doorway Opening Size Guide
Standard Door Sizes Minimum-Maximum Doorway Width Minimum-Maximum Doorway Height
30" x 81" 29-7/8" to 30-3/8" 80" to 81"
32" x 81" 31-7/8" to 32-3/8" 80" to 81"
34" x 81" 33-7/8" to 34-3/8" 80" to 81"
36" x 81" 35-7/8" to 36-3/8" 80" to 81"
32" x 85" 31-7/8" to 32-3/8" 84" to 85"
34" x 85" 33-7/8" to 34-3/8" 84" to 85"
36" x 85" 35-7/8" to 36-3/8" 84" to 85"

This video will guide you in measuring your door opening for your storm door.
Storm door measuring guide