In this quick guide, we’ll explain how and when to obtain a garage door estimate and how to calculate different measurements inside your garage before a consultation. We’ll also share important facts about garage door insulation, ROI, and how to tell if it’s time to replace an old door.


How can I obtain a reliable estimate?

For repair estimates, it’s wise to call several companies to compare quotes. If a technician is needed to inspect the damage, the company may charge a small fee. For a quote on a new garage door or garage door opener, many dealerships offer a free home consultation.

At what point should I replace my garage door rather than have it repaired?

Just as you wouldn’t pay for repairs on your car that exceed the total worth of the vehicle, it isn’t wise to pay for repairs that would exceed the cost of a new garage door.


What is headroom?

Headroom is the amount of space between the top of your garage door opening and the lowest part of the ceiling, including pipes, ductwork, or railing. 

How much headroom do I need?

The headroom required depends on the spring system you choose for your new garage door, but typically, between 10’ and 12’ is needed for the garage door alone. Additional clearance is needed for your garage door opener.

What is sideroom?

Sideroom refers to the space on either side of the garage door opening. Sideroom should be measured from one side of the garage door opening to the nearest outward obstruction, wall, or beam.

How much sideroom do I need?

Again, the sideroom needed for your garage door depends on the spring system your new door requires. Typically, between 3” and 6” on either side of the door is sufficient.

What is backroom?

Backroom is the distance from the garage door to the back wall of the garage.

How much backroom do I need?

For residential garage doors, the minimum backroom needed is the garage door height plus an additional 18.” Check out this helpful measurement guide from The Home Depot for more information!

What are the standard sizes for garage doors?

Standard residential garage doors come in widths of whole feet between 8 and 18. Depending on the supplier you choose, custom models may be available in additional 2” increments.



What is R-value?

R-value is the metric used to assess a garage door’s level of insulation. The higher the R-value, the more thermally efficient the garage door.

It is important for my garage door to have a high R-Value?

A high R-value is particularly important for garage doors in Iowa. Due to the extremities in climate— hot, hot summers and cold, cold winters—a highly insulated garage door is necessary to safeguard against energy loss. If your garage is detached, the R-value may not be as crucial.


Return on Investment 

What is the return on investment for new garage doors?

According to Remodeling magazine’s 2017 Cost vs. Value report, Des Moines area home owners yielded an average of more than 80% ROI for their new garage doors.



How do I know whether I need a new garage door?

If your garage door is not functioning, it is best to replace it before it becomes a safety hazard. If your door has lost the integrity of its shape or is in need of painting, it may be best to replace it.

What is the average lifetime of a garage door?

If maintained, the garage door itself can last up to 30 years. The lifespan of a typical garage door opener is around 10 years.


When I replace my garage door, do I have to replace the whole system?

While it is possible to keep your old track when you replace your garage door, it is best practice to replace the system as a whole to ensure the highest quality and satisfaction.

For all of your garage door needs across the state of Iowa, contact WD Door. Our trained team members are ready to help you with all of your commercial and residential garage door inspection, installation, and service needs.