DOORIX GUIDE

How to Measure for a New Garage Door: A Step-by-Step Guide

Selecting the right garage door starts with accurate measurements. Whether you're replacing an old door or installing a new one, precise measurements are crucial for a perfect fit. This comprehensive guide will walk you through each step of measuring your garage door, ensuring a smooth and successful installation.

Written By

Doorix Operation Team

Why Accurate Measurements Matter

Before diving into the measuring process, it's important to understand why precision is key:

  • Incorrect measurements can lead to costly mistakes

  • Ill-fitting doors compromise home security and insulation

  • Proper measurements save time and money during installation

Step 1. Measure the Width

  • Start by measuring the width of the garage door opening from inside the garage

  • Measure at the bottom, middle, and top of the opening

  • Record the smallest measurement to ensure a proper fit

  • Measure in three locations to account for any potential unevenness in the framing

Step 2. Measure the Height

  • Measure from the floor to the top of the opening

  • Take measurements on both the left and right sides of the garage

  • Use the smallest measurement as your standard height

  • Check for any obstructions like pipes or electrical lines that might impact door installation

Step 3. Check the Side Room

  • Measure the space on both sides of the door opening

  • Minimum side room required is typically 3-4 inches on each side

  • This space is crucial for track and spring installation

Step 4. Measure the Headroom

  • Measure from the top of the door opening to the ceiling

  • Standard garage doors require 12-18 inches of headroom

  • This space accommodates the door's tracking and opening mechanism

Additional Measurement Tips

  • Always double-check your measurements

  • Round down to the nearest inch for a safe fit

  • Consider the type of door (sectional, roll-up, etc.) when measuring

  • If uncertain, consult a professional measuring service