Welcome to Ask A Pro by MM Garage Door Repair, Utah''ss expert on door sizes, measurements & standards. Whether you’re replacing garage door panels or ordering a new garage door, we’ll demystify industry norms and measurement best practices so you get a perfect fit every time.

🔍 Find out: What does nominal door size mean?

Welcome to the MM Garage Door Repair Utah blog! As your local garage door experts, we’re dedicated to providing you with the information you need to keep your garage door functioning smoothly and safely. Today, we’re tackling a common question we hear from homeowners: “What does nominal door size mean?” Understanding this concept is crucial when you’re considering replacing your garage door, ordering parts, or even just discussing your garage door with a technician. Let’s dive in!

Understanding Nominal Door Size

The term “nominal door size” refers to the approximate dimensions of a garage door, typically expressed in feet and inches. It’s important to understand that the nominal size isn’t necessarily the exact, precise measurement of the door. Instead, it’s a rounded-off figure used for general identification and ordering purposes. Think of it like buying lumber – a 2×4 isn’t actually two inches by four inches, but that’s the nominal size we all use.

For example, a garage door described as “9×7” has a nominal width of 9 feet and a nominal height of 7 feet. However, the actual measurements might be slightly different, perhaps a fraction of an inch smaller. This difference is intentional and allows for proper fitting and operation within the garage door opening.

Why is Nominal Size Used

So, why not just use the exact measurements? There are a few key reasons why the industry relies on nominal sizes:

  • Standardization: Nominal sizes provide a common language for manufacturers, suppliers, and installers. This standardization simplifies the ordering process and ensures compatibility between different components.
  • Ease of Communication: It’s much easier to say “a 16×7 door” than to rattle off a series of precise measurements down to the eighth of an inch.
  • Allowance for Tolerances: Nominal sizes account for slight variations in the manufacturing process and the construction of the garage opening itself.

How to Determine Your Garage Door’s Nominal Size

If you’re unsure of your garage door’s nominal size, here’s how you can find out:

  1. Check Existing Paperwork: Look for the original purchase receipt, installation documents, or warranty information. The nominal size is often listed on these documents.
  2. Measure the Opening: Use a measuring tape to measure the width and height of the garage door opening. Measure from the inside of the frame, edge to edge. Round these measurements to the nearest foot or half-foot to determine the nominal size. For example, if the opening is 8 feet 10 inches wide and 6 feet 11 inches high, the nominal size is likely 9×7.
  3. Inspect the Door Itself: Sometimes, the nominal size is printed on a sticker or plate located on the inside of the garage door. Look along the edges or near the bottom panel.

Why Accurate Measurements Matter

While nominal size is useful for general identification, accurate measurements are crucial when ordering replacement parts or a new garage door. Here’s why:

  • Replacement Panels: If you need to replace a damaged panel, you’ll need the exact dimensions to ensure a proper fit.
  • New Garage Door Installation: The installer will need precise measurements of the opening to ensure the new door fits correctly and operates smoothly.
  • Springs and Cables: The correct size and type of springs and cables are essential for safe and efficient operation. These components are often selected based on the door’s weight and dimensions.

For these reasons, we always recommend having a professional technician take precise measurements before ordering any parts or scheduling a new garage door installation. We at MM Garage Door Repair Utah are happy to assist you with this!

Final Solution: When in Doubt, Call a Professional

While understanding nominal door size is helpful, the best way to ensure you get the right garage door or replacement parts is to consult with a qualified garage door technician. We can accurately measure your opening, assess your needs, and recommend the best solution for your situation. Trying to DIY a garage door repair or installation without the proper knowledge and tools can be dangerous and lead to costly mistakes.

Safety Note

Garage doors are heavy and complex mechanisms. Never attempt to repair or adjust your garage door springs or cables yourself. These components are under high tension and can cause serious injury if mishandled. Always call a qualified technician for any repairs or adjustments involving these parts.

FAQs About Garage Door Sizes

Q: What are common garage door sizes?

A: Common single-car garage door sizes are 8×7, 9×7, and 10×7. Double-car garage doors are typically 16×7 or 18×7.

Q: What if my garage door opening is an unusual size?

A: Custom-sized garage doors are available to fit non-standard openings. A professional technician can help you determine the best solution for your unique situation.

Q: Does the nominal size include the frame?

A: No, the nominal size typically refers to the door panel itself, not the surrounding frame.

We hope this article has clarified the meaning of nominal door size and its importance in garage door maintenance and repair. Remember, when it comes to your garage door, safety and accuracy are paramount. Don’t hesitate to reach out to the experts at MM Garage Door Repair Utah for all your garage door needs.

Ready to experience the MM Garage Door Repair Utah difference? Don’t gamble with your garage door’s performance or safety. Let our skilled technicians provide you with expert service and peace of mind. Call us today at 801-418-9217 for a free consultation, or visit our website at mmgaragedoorrepair.com to learn more. We’re not just fixing doors; we’re building relationships, one smooth-operating garage door at a time. Let’s get your garage door working perfectly, so you can get back to what matters most!

A MM Garage Door Repair service truck in Utah. Ask a Pro question:{

MM Garage Door Repair, Service, Install, Replace or New Build

When the you need professional Garage Doors Service Call US anytime!
need a Pro?

Related Posts