concrete adelaide sa planning a double garage driveway involves more than simply measuring the garage door. The driveway must provide enough space for two vehicles to enter, exit, open their doors and move around comfortably. It should also connect safely to the street, allow for drainage and suit the available frontage.
For Adelaide homeowners, choosing the correct driveway width is especially important when building a new home, replacing an old driveway or renovating a property with limited space. A driveway that is too narrow can make parking frustrating, while an oversized driveway may waste garden space and increase construction costs.
This guide explains how wide a double garage driveway should be, what measurements to consider and how to choose a practical concrete driveway layout.
What Is the Standard Width of a Double Garage Driveway?
As a general residential planning guide, a double garage driveway is commonly designed at approximately 5.5 to 6.5 metres wide. This provides space for two vehicles to park side by side and gives drivers room to enter and exit the garage.
However, the ideal width depends on:
- The size of the vehicles
- The garage door opening
- The position of the garage
- The width of the property frontage
- Whether the driveway is straight or angled
- The location of fences and garden beds
- Local council crossover requirements
A driveway measuring around 5.5 metres may work well for smaller vehicles and a straightforward layout. A width closer to 6 metres or more may provide greater comfort for larger cars, SUVs and family vehicles.
These figures are general design guidelines, not a universal legal standard. Your local council, building designer or driveway contractor should confirm the appropriate dimensions for the site.
Why Garage Door Width Is Not Enough
Many homeowners measure the double garage door and assume the driveway should be the same width. This can create access problems.
A garage door may be approximately 4.8 to 5.5 metres wide, but the driveway may need additional space outside the garage to allow vehicles to turn and align correctly.
The driveway should account for:
- The full width of both vehicles
- Side mirror clearance
- Space between vehicles
- Clearance from fences and walls
- Room to approach the garage
- Opening car doors
- Turning into the garage from the street
For example, two vehicles may fit inside a garage but still struggle to enter if the driveway narrows sharply near the street. A consistent width is usually easier to use than a driveway that becomes narrow at the entrance.
Recommended Width for Different Situations
Compact Double Garage
For a compact double garage used by smaller cars, a driveway around 5.5 metres wide may be suitable if the approach is straight and unobstructed.
This option may work for:
- Small hatchbacks
- Compact sedans
- Narrow suburban blocks
- Short driveways
- Properties with limited frontage
Careful measurement is essential because small differences in width can affect door opening and parking comfort.
Standard Family Garage
For a typical family home with two vehicles, a width of approximately 6 metres is often a practical target. It provides a useful balance between convenience, cost and landscaping.
This width may suit:
- Sedans
- SUVs
- Family cars
- Dual-vehicle households
- Homes with a standard double garage
A 6-metre driveway can also provide more flexibility when one vehicle is slightly larger than the other.
Larger Vehicles or Difficult Access
If the household uses large SUVs, four-wheel drives, vans or vehicles with trailers, additional width may be helpful. A driveway closer to 6.5 metres or a wider parking apron may improve manoeuvrability.
Extra space may also be needed where:
- The driveway is angled
- The garage is set back from the street
- The property is on a slope
- There are retaining walls
- The street is narrow
- Vehicles must make a sharp turn
The best solution may not always be a wider driveway. Sometimes changing the angle, crossover position or garage alignment can improve access more efficiently.
Consider the Driveway Entrance
The entrance from the street is one of the most important parts of a double garage driveway. Even if the driveway is wide near the garage, a narrow or poorly positioned crossover can make entry difficult.
Check the following:
- The width of the street crossover
- The position of the kerb
- The footpath location
- The distance from the corner
- Street trees and service pits
- Nearby power poles
- Visibility for approaching traffic
- The angle of entry into the property
On corner blocks, the side street may provide a better driveway position than the main frontage. However, council approval may be required for a new or modified crossover.
Do not finalise the driveway width before confirming the permitted access location with the relevant Adelaide council.
Allow Space for Doors and Pedestrians
A double driveway should be designed for daily use, not just vehicle storage. Drivers and passengers need room to open doors without hitting another vehicle, a fence or a wall.
If the driveway is directly beside a boundary, consider leaving additional clearance on at least one side. A pedestrian path can also improve safety by providing a clear route from the street to the front door.
Where space is limited, avoid placing tall walls or dense landscaping immediately beside the driveway. Low planting, open fencing and defined edges can make the area feel wider and improve visibility.
Choose the Right Concrete Layout
The concrete design can influence how wide the driveway appears and how easy it is to maintain.
Popular options include:
Full-Width Concrete
A full-width concrete driveway provides a continuous surface for both vehicles. It is practical for frequent parking and allows flexibility when vehicles are not positioned perfectly.
Concrete with Feature Borders
Contrasting borders can create a structured appearance without reducing the main driving area. For example, grey concrete with charcoal edges can complement a modern home.
Exposed Aggregate Concrete
Exposed aggregate adds texture and visual interest. It can make a wide driveway a feature of the front elevation, but it may require more careful cleaning and sealing.
Strip Driveway
Two concrete tracks with landscaping between them can reduce the amount of concrete used. This layout is attractive but requires accurate vehicle alignment and may not be ideal for every double garage.
Do Not Forget Drainage and Falls
A wide driveway can collect significant amounts of stormwater if it is not designed correctly. The surface should direct water away from the garage and house foundations.
Depending on the site, the design may require:
- Crossfall
- Longitudinal slope
- Channel drains
- Grated pits
- Correct edge levels
- Stormwater connections
- Drainage near the garage threshold
Drainage is especially important on sloping sites or properties where the garage is lower than the street. A driveway contractor should assess site levels before excavation and formwork begin.
Check Adelaide Council Requirements
Driveway width and crossover design may be affected by local council rules. Requirements can vary depending on whether the driveway crosses a footpath, kerb, verge or road reserve.
Before construction, confirm:
- Whether a crossover permit is required
- The approved driveway location
- Minimum separation from corners
- Street tree protection requirements
- Footpath and verge conditions
- Drainage obligations
- Concrete and construction specifications
A contractor should not assume that a driveway width accepted in one Adelaide council area will automatically be approved in another.
Final Thoughts
For many Adelaide homes, a double garage driveway measuring approximately 5.5 to 6.5 metres wide provides a useful starting point. Around 6 metres is often a practical balance for two family vehicles, while larger vehicles or difficult access conditions may justify additional width.
The final design should be based on vehicle dimensions, garage alignment, turning space, property frontage, drainage and council requirements. A well-planned driveway should make parking easy while preserving landscaping and maintaining a balanced street appearance.
Before requesting a concrete quote, measure the garage, vehicles, frontage and entrance carefully. Ask the contractor to include excavation, base preparation, reinforcement, concrete thickness, control joints, finish, drainage and crossover requirements in the proposal. Proper planning at the beginning can prevent costly changes after the concrete has been installed.