Choosing a new garage door is not just about color, style, or material. One of the most important decisions is making sure you select the correct size for your garage opening.
So, what are the standard garage door sizes?
Most residential single garage doors are 8 or 9 feet wide and 7 or 8 feet high. Standard double garage doors are commonly 16 feet wide and 7 or 8 feet high. However, these dimensions are not universal. Some homes have wider, taller, or custom openings that require a different door size.
Before ordering a replacement, it is important to measure the opening correctly and consider the available space around it.
In this guide, Ruby’s Garage Door explains common residential garage door dimensions, how to measure your opening, and how to determine which size may work best for your home.
What Are the Standard Sizes for Residential Garage Doors?
Residential garage doors come in several common dimensions. The right size depends on the garage opening, the number of vehicles, and the available interior and exterior space.
Standard Single Garage Door Sizes
A single garage door is designed to provide access for one vehicle.
Common residential dimensions include:
| Width | Height | Typical application |
| 8 feet | 7 feet | Single-car garage |
| 8 feet | 8 feet | Taller single-car opening |
| 9 feet | 7 feet | Single-car garage |
| 9 feet | 8 feet | Taller single-car opening |
| 10 feet | 7–8 feet | Wider single-car opening |
An 8-foot-wide door may be suitable for some smaller vehicles, while a 9- or 10-foot opening can provide more room to enter and exit.
The best option depends on the actual opening and the vehicle dimensions.
Standard Double Garage Door Sizes
A double garage door provides access for two vehicles through one wide opening.
Common dimensions include:
| Width | Height | Typical application |
| 16 feet | 7 feet | Two-car residential garage |
| 16 feet | 8 feet | Taller two-car opening |
| 18 feet | 7 feet | Wider two-car opening |
| 18 feet | 8 feet | Wider and taller opening |
A 16-foot-wide garage door is a common choice for a two-car garage, but it may not provide enough clearance for every vehicle or parking arrangement.
For homeowners with larger vehicles, additional width can make daily parking more comfortable.
Is a 16-Foot Garage Door Big Enough for Two Cars?
For many homes, yes. A 16-foot-wide garage door is a common double-door configuration.
However, the amount of usable space depends on more than the door width.
Consider:
- The width of both vehicles.
- The distance between the vehicles.
- The available space beside each vehicle.
- The location of shelves, cabinets, and other storage.
- The garage’s interior dimensions.
If two vehicles are parked side by side, the garage should provide enough room to open the doors and move around safely.
A wider garage opening may be worth considering when you own large trucks or SUVs.
How Do You Measure a Garage Door Opening?
If you are replacing an existing garage door, measuring the opening is an important first step.
However, measuring the visible door panel alone is not enough. A proper installation assessment also considers the surrounding structure and the space needed for the tracks and opener.
Here are the main measurements to understand.
1. Measure the Width of the Opening
Measure horizontally from the inside edge of one side of the finished opening to the inside edge of the other side.
This gives you the opening width.
Do not assume that the existing door’s advertised size is the exact measurement of the structural opening.
2. Measure the Height of the Opening
Measure vertically from the finished garage floor to the top of the opening.
If the floor is uneven, this should be taken into account during the installation assessment.
3. Measure the Headroom
Headroom is the available space between the top of the garage door opening and the ceiling.
This space is important because the horizontal tracks, springs, and other hardware need room to operate.
The amount required varies depending on the door system and track configuration.
4. Measure the Side Room
Side room is the available space on the left and right sides of the opening.
It is needed for the vertical tracks, brackets, and other installation hardware.
5. Check the Backroom
Backroom refers to the distance from the garage door opening toward the back wall of the garage.
The garage door needs sufficient space to travel along the horizontal tracks when it opens.
The opener and its rail may also require additional clearance.
Important: These measurements help identify the opening and available installation space, but they do not replace a professional installation assessment. Track systems, spring configurations, door construction, and opener requirements can change the measurements needed.
What If Your Garage Door Opening Is Not a Standard Size?
Not every home has a standard garage door opening.
Older houses, remodeled garages, detached garages, and custom-built homes may have unusual dimensions.
In these situations, a standard-size door may not fit correctly.
Possible solutions include:
- Ordering a custom-size garage door.
- Selecting a compatible door system with a different track configuration.
- Having the opening professionally evaluated before choosing a replacement.
- Reviewing whether structural modifications are necessary.
Do not assume that an opening can be widened or raised without checking the surrounding structure. Changes to a garage opening may involve structural work and should be evaluated by a qualified professional.
What Size Garage Door Do You Need for an SUV or Pickup Truck?
If you drive an SUV, pickup truck, or another larger vehicle, choosing the right garage door dimensions becomes especially important.
A standard opening may be sufficient for some vehicles, but others need additional width or height.
Before selecting a door, consider:
Vehicle width: Include mirrors when evaluating the clearance needed to enter the garage.
Vehicle height: Roof racks, cargo carriers, and other accessories can increase the total vehicle height.
Parking clearance: You should have enough room to enter without repeatedly adjusting the vehicle’s position.
Interior clearance: The garage must also provide enough space to park and move around once the vehicle is inside.
For taller vehicles, an 8-foot-high garage door may be more appropriate than a 7-foot door, depending on the actual vehicle and opening.
Always check the vehicle’s full dimensions and the garage opening before ordering a replacement.
Should You Choose One Double Garage Door or Two Single Garage Doors?
If you are building or renovating a two-car garage, you may have another decision to make: one large double door or two separate single doors.
Both configurations have advantages.
One Double Garage Door
A single wide door can provide a clean, uninterrupted appearance across the front of the garage.
Potential advantages include:
- One large opening for two vehicles.
- A simple exterior appearance.
- One opener system instead of two.
- Convenient access when moving larger items in and out.
However, the door is larger and heavier than a typical single door, so the supporting hardware and opener must be selected accordingly.
Two Single Garage Doors
Two separate doors provide independent access to each parking space.
Potential advantages include:
- Each door operates independently.
- Smaller individual door panels.
- One side can remain closed while the other is being used.
- Different styles or configurations may be possible.
This option generally requires two opener systems if both doors are automated.
The best configuration depends on the garage structure, available space, budget, and how you use the garage.
Does Garage Door Size Affect the Opener You Need?
Yes. The size, weight, and construction of a garage door are important when selecting an opener.
A larger or heavier door may require an opener with specifications suitable for that particular system.
However, size alone does not determine the correct opener.
Other factors include:
- Door material.
- Door weight.
- Spring system and door balance.
- Frequency of daily operation.
- Manufacturer recommendations.
A properly balanced garage door should move smoothly through its travel. The opener should not be expected to compensate for a door with damaged springs or mechanical problems.
If you are replacing both the door and opener, it is best to evaluate them together.
How Much Does a New Garage Door Cost?
The cost of a new garage door depends on its dimensions, material, design, insulation, hardware, and installation requirements.
A standard single door may cost less than a large double door, but the final price depends on the specific product and project.
Other factors that can affect the total cost include:
- Steel, wood, aluminum, or composite construction.
- Insulation and energy-efficiency options.
- Window panels and decorative hardware.
- Custom dimensions.
- Track and spring requirements.
- Removal of the existing door.
- Opener installation or replacement.
If your garage has a nonstandard opening, a custom-size door may also affect the price and manufacturing lead time.
Rather than choosing a door based only on its advertised price, request an estimate based on the actual opening and installation conditions.
When Should You Replace Your Existing Garage Door?
Sometimes homeowners begin looking for a new garage door because the existing one no longer meets their needs.
Replacement may be worth considering when:
- The door has significant structural damage.
- Multiple panels are deteriorating.
- The door no longer fits or operates correctly.
- You are remodeling the exterior of your home.
- You need a different opening configuration.
- The existing door has recurring mechanical problems.
A damaged door does not always need complete replacement. Depending on the condition and availability of parts, some problems may be repaired.
A professional inspection can help determine whether repair or replacement is the more practical option.
Garage Door Installation and Replacement in Ruby’s Service Areas
Choosing the correct garage door size is an important part of planning a replacement or new installation.
Ruby’s Garage Door helps homeowners evaluate their garage door needs and explore suitable installation options.
Our service areas include:
- Charlottesville
- Ruckersville
- Crozet
- Harrisonburg
- Waynesboro
- Lake Monticello
- Orange
- Culpeper
Whether you need a single garage door, a double garage door, or a replacement for an older opening, the first step is checking the dimensions and installation requirements.
For assistance, contact Ruby’s Garage Door at (434) 443-0238.
Frequently Asked Questions About Garage Door Sizes
What is the most common single garage door size?
Common single residential garage door sizes include 8 feet by 7 feet and 9 feet by 7 feet. Taller options, such as 8 feet high, are also available.
What is the standard size of a two-car garage door?
A 16-foot-wide by 7-foot-high garage door is a common two-car configuration. Other options include 16 feet by 8 feet and 18-foot-wide doors.
Is an 8-foot garage door wide enough for a car?
It may be suitable for some vehicles, but clearance depends on the vehicle’s width, mirrors, and the available space around the opening.
What size garage door do I need for a pickup truck?
The correct size depends on the truck’s height and width, including mirrors and accessories. Measure the vehicle and compare its dimensions with the actual garage opening before choosing a door.
Can I install a garage door that is not a standard size?
Yes. Custom-size garage doors are available for openings that do not match common residential dimensions. The opening and installation space should be professionally evaluated first.
How much headroom is needed for a garage door?
The required headroom depends on the door, track configuration, spring system, and opener. It should be checked against the manufacturer’s installation specifications.
Can I replace a 7-foot garage door with an 8-foot door?
Possibly, but the garage opening and available space must be evaluated. Increasing the door height may require structural modifications and changes to the track system.
Is one double garage door better than two single doors?
Neither option is automatically better. One double door offers a wide opening, while two single doors provide independent access. The right choice depends on the garage layout, budget, and homeowner preferences.
Do larger garage doors need stronger openers?
The opener must be rated for the door’s size and weight. A professional should evaluate the door balance, spring system, and manufacturer specifications before selecting an opener.
Who can help me choose the right garage door size near Charlottesville, VA?
Ruby’s Garage Door assists homeowners in Charlottesville, Ruckersville, Crozet, Harrisonburg, Waynesboro, Lake Monticello, Orange, and Culpeper. Call (434) 443-0238 to discuss your garage door installation or replacement needs.
Need Help Choosing the Right Garage Door?
The right garage door should fit your opening, suit your vehicle, and operate safely with the correct hardware.
Before ordering a new door, make sure the dimensions and installation requirements have been properly evaluated.
Contact Ruby’s Garage Door for help with garage door installation and replacement.
Call (434) 443-0238
Serving Charlottesville, Ruckersville, Crozet, Harrisonburg, Waynesboro, Lake Monticello, Orange, and Culpeper.