Size Measurement Guide: What Every Homeowner Should Know

2024-01-05 5 min read

Whether you're replacing an old door or installing a new one, accurate measurements ensure a proper fit. At Garage Door Kingston, we always take professional measurements before any installation, but understanding the process helps you make informed decisions about your new door. Here's our complete guide to measuring your garage door opening.

What You'll Need

Gather these tools before you start measuring:

Step-by-Step Measurements

Follow these steps carefully for accurate measurements:

1. Width Measurement

Measure the width of the door opening at three points:

Use the smallest measurement as your width. Standard widths are 8', 9', 10', 12', 14', 16', and 18'. If your measurement falls between standard sizes, you may need a custom door.

2. Height Measurement

Measure from the floor to the top of the opening on both sides. Use the smaller measurement. Standard heights are 7', 7'6", and 8'. Again, non-standard heights may require custom ordering.

3. Headroom

This is the space between the top of the door opening and the ceiling (or any obstruction like lights, ducts, or garage door opener). You typically need:

Insufficient headroom doesn't mean you can't have a new door.it just means we need to use specialized hardware. Our installation team has solutions for every situation.

4. Side Room

Measure from the edge of the door opening to the nearest wall or obstruction on each side. Standard garage door tracks require at least 3.75 inches on each side. More space allows for standard installations; less space may require low-clearance hardware.

5. Backroom (Depth)

Measure from the door opening straight back into the garage. You need enough depth for the door panels to stack horizontally when the door is open. A typical 7' or 8' tall door needs about 8-10 feet of depth, plus extra space if you have a garage door opener.

Special Considerations

When measuring, also note:

Why Accuracy Matters

Even small measurement errors can result in significant problems:

Free Professional Measurement

While this guide helps you understand the process, we always recommend a professional measurement before ordering a new door. At Garage Door Kingston, we provide free on-site measurements as part of our free quote service. Our experienced technicians will ensure every measurement is accurate and help you choose the perfect door for your home.

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