If you’re shopping for a new garage door or replacing an old one, size matters. But with so many numbers floating around, it’s hard to know what “standard” actually means. Whether you’re building a new garage in Portland or just trying to figure out if your current door is common-sized, this guide breaks it all down no fluff, just facts.

Why Garage Door Size Matters

Get this wrong, and you’re in for a headache.

If your garage door is too small, your vehicle won’t fit. Too big, and you’re paying more for a custom install you don’t need. Knowing the standard sizes saves time, money, and frustration.

Standard Garage Door Sizes (By Type)

Let’s keep it simple. Here are the most common garage door sizes you’ll see across Portland and the rest of the country.

1-Car Garage Doors

• Standard width: 8 feet to 9 feet
• Standard height: 7 feet to 8 feet

This size works for most sedans, crossovers, and compact SUVs. If your garage only has space for one car, this is probably what you have.

2-Car Garage Doors

• Standard width: 16 feet
• Standard height: 7 feet to 8 feet

This is your typical suburban garage size. Two mid-size vehicles? You’re covered. Just make sure you’ve got enough clearance inside for both to open doors comfortably.

What About Custom Sizes?

Sometimes, what you need doesn’t fall into a nice, clean number. Older homes in Portland—especially those built pre-1970—may have smaller or unusual garage openings. That’s when we look at custom sizes. At PDX Garage Door, we’ve seen it all. Whether you’ve got a tight urban garage or a converted barn, we can build around your space without pushing you toward overpriced solutions.

Measuring Your Garage Door

Here’s how to get a quick measurement without calling anyone:

• Width: Measure from side to side, inside the opening.
• Height: Measure from the floor to the top of the opening.
• Sideroom: Check how much space is on the left and right of the opening—usually at least 3.5 inches is needed.
• Headroom: Measure from the top of the opening to the ceiling—important for openers and track systems.
• Depth: Make sure there’s enough garage length to accommodate the full door when open.

If you’re not sure, we’ll come take the measurements for free and walk you through the options.

Final Thoughts

Guessing leads to mistakes. Mistakes lead to more bills. If you’re unsure what you need, we’ll measure it, explain the options, and help you pick a door that fits your life, not just your opening. To learn more about any of our garage door services or repairs, see our category pages!

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