Double Carport Kits Australia: Sizes, Costs & What to Look For

A carport is an essential addition for many Australian homeowners who want to protect their vehicles from sun, rain, and hail. Double carport kits have become increasingly popular because they provide coverage for two vehicles while remaining more affordable and flexible than fully enclosed garages. If you’re considering installing one, it’s important to understand the sizes, costs, materials, and installation options available in Australia in 2026.

This guide will provide a complete overview of double carport kits Australia, helping you make an informed choice that suits your property, budget, and lifestyle.

What Is a Double Carport Kit?

A double carport kit is a prefabricated or modular structure designed to cover two vehicles. Unlike traditional garages, carports are often open on the sides, offering shelter while allowing easy access and ventilation. They typically include a roof, support posts, fixings, and sometimes optional side panels.

Carport kits are available for DIY assembly or professional installation, making them versatile for both urban and rural Australian homes. They are usually made from durable materials such as steel, aluminium, or timber and can be customised to fit your driveway, backyard, or side yard.

Why Choose a Double Carport?

Choosing a double carport over a single carport or a garage comes with several advantages:

  1. Space Efficiency
    Double carports provide ample coverage for two vehicles, making them ideal for families with multiple cars or for households that require extra storage space for motorbikes, boats, or garden equipment.
  2. Cost-Effective
    While a garage can cost anywhere from $20,000 to $50,000, double carport kits in Australia typically range from $2,500 to $12,000 depending on size, material, and features.
  3. Quick Installation
    Many double carport kits are designed for DIY installation, meaning they can be up and ready in a day or two with basic tools. Professional installation is also available for more complex or larger designs.
  4. Flexibility
    Carport kits can be installed on a concrete slab, gravel, or even level ground with proper footings. They can also be customised with side panels, gutters, or roofing options to suit your needs.
  5. Protection
    Double carports shield vehicles from harsh Australian weather, including UV rays, hail, wind, and rain, which helps preserve your car’s paintwork and interior.

Common Sizes of Double Carport Kits in Australia

When selecting a double carport, size is one of the most critical considerations. The width, length, and height of your carport will determine how well it accommodates your vehicles and fits your property.

Standard Double Carport Dimensions

Dimension

Typical Range

Notes

Width

5.5m to 6m

Enough for two cars parked side by side with extra clearance

Length

5m to 7m

Sufficient for most sedans, SUVs, or small trucks

Height

2.4m to 3m

Allows for standard cars and SUVs; adjust for trucks or caravans

Tip: Always measure your driveway or intended installation site before purchasing a kit. Leave at least 0.5m clearance on all sides for ease of parking and movement.

Materials Used for Double Carport Kits

The material of your carport affects durability, maintenance, and aesthetics. Here are the most common options in Australia:

1. Steel Carports

Steel is the most popular choice for double carport kits due to its strength and longevity. Galvanised or powder-coated steel frames resist rust and require minimal maintenance. Steel roofs, often made of Colorbond or corrugated iron, provide excellent weather protection.

Pros: Strong, durable, low maintenance, fire-resistant.
Cons: Can be more expensive than aluminium or timber.

2. Aluminium Carports

Aluminium carports are lightweight, rust-resistant, and easy to install. They are ideal for coastal areas where salt air can accelerate corrosion.

Pros: Lightweight, low maintenance, rust-resistant.
Cons: Less structurally strong than steel; may require additional support for high winds.

3. Timber Carports

Timber carports offer a natural aesthetic that blends with gardens and traditional homes. Common options include treated pine or hardwoods like Merbau.

Pros: Attractive, blends with outdoor areas, easy to customise.
Cons: Requires regular maintenance such as staining or sealing; more susceptible to termites if not treated.

Roof Types for Double Carports

The roof of a double carport is critical for weather protection and visual appeal. Popular roof types include:

  1. Flat Roof
    Simple and affordable; works well in modern homes with a minimalist look.
  2. Gable Roof
    Offers improved water runoff and a classic appearance. Gable roofs are more expensive than flat roofs but can provide extra clearance for tall vehicles.
  3. Skillion Roof
    A single-sloped roof that is easy to install and ideal for properties with height restrictions.
  4. Louvre Roof
    Adjustable louvre roofs allow you to control sunlight, airflow, and rain protection, offering maximum flexibility.

Cost of Double Carport Kits in Australia

Understanding the cost is vital for planning your project. Prices vary depending on size, material, roof type, and installation.

Estimated Cost Guide (2026)

Type

Material

Price Range (AUD)

Small DIY Kit

Steel or aluminium

$2,500 – $5,000

Medium Pre-Fabricated Kit

Steel or aluminium

$5,000 – $8,000

Premium Kit with Gable Roof

Steel, aluminium, timber

$8,000 – $12,000

Custom Double Carport

All materials

$12,000 – $20,000+

Additional Costs to Consider:

  • Installation fees (if not DIY)
  • Concrete slab or footings
  • Permit and council fees
  • Optional extras: gutters, side panels, lighting, ceiling fans

How to Save on Costs

  • Choose a DIY kit if you are confident in assembly.
  • Use powder-coated aluminium for lower maintenance.
  • Avoid unnecessary customisation if the basic size and style meet your needs.
  • Compare multiple suppliers for quotes.

DIY vs Professional Installation

Double carport kits in Australia often come with the option of DIY installation or professional installation.

DIY Installation

Pros:

  • Lower upfront cost
  • Immediate availability
  • Learning experience for handy homeowners

Cons:

  • Time-consuming
  • Requires tools and basic construction skills
  • Some kits may be complex for larger structures

Professional Installation

Pros:

  • Expert assembly ensures safety and longevity
  • Often includes warranty
  • Time-saving

Cons:

  • Higher cost
  • Need to schedule tradesperson availability

For large or custom double carports, professional installation is usually recommended to ensure compliance with local building codes and safety standards.

Permits and Regulations

Before installing a double carport in Australia, check with your local council. Permits may be required depending on:

  • Height and size of the carport
  • Whether it is attached to the home
  • Local zoning and easements
  • Materials and roof type

Failing to obtain the required permits may result in fines or having to remove the structure. In most councils, small detached steel or aluminium carports under certain sizes may be exempt from formal approval.

Features to Look For in Double Carport Kits

When choosing a kit, consider these features:

  1. Durability – Galvanised steel or powder-coated aluminium is recommended for Australian weather.
  2. Ease of Assembly – Clear instructions and pre-drilled components save time.
  3. Warranty – Look for kits with at least a 5–10 year structural warranty.
  4. Roof Options – Flat, gable, or louvre based on your needs.
  5. Optional Extras – Lighting, gutters, side panels, or ceiling fans for added comfort.

Popular Suppliers of Double Carport Kits in Australia

Some reputable suppliers for double carport kits Australia include:

  • Stratco – Wide range of steel carports and DIY kits.
  • Bunnings – Affordable DIY kits, smaller sizes, and aluminium options.
  • Easy Carports – Custom and standard kits, professional installation available.
  • Steel Carports Direct – Strong steel structures, suitable for DIY or full installation.

Comparing multiple suppliers ensures you get the best price, material quality, and warranty for your budget.

Maintenance Tips for Long-Lasting Carports

A well-maintained carport lasts for years. Some maintenance tips:

  • Inspect for rust, especially around fixings and joints.
  • Clean gutters and downpipes regularly if included.
  • Check footings for signs of movement or cracking.
  • Maintain timber by sealing or staining every 2–3 years.
  • Clean aluminium or steel frames to remove dirt, salt, and debris.

Regular maintenance reduces long-term repair costs and keeps your carport looking new.

Conclusion

Double carport kits are a practical and cost-effective solution for Australian homeowners who want to protect their vehicles and enhance their outdoor space. Prices in 2026 range from $2,500 for small DIY kits to over $20,000 for large custom structures, depending on materials, size, and features.

Before purchasing, consider:

  • Your property’s available space and dimensions
  • Material preferences: steel, aluminium, or timber
  • Roof type and optional features
  • Whether to DIY or hire a professional
  • Council permit requirements

By carefully evaluating these factors, you can select a double carport kit Australia that fits your budget and needs, offering a functional and attractive outdoor solution for years to come.

FAQs

Q1: How much does a double carport kit cost in Australia in 2026?
Typically between $2,500 and $12,000 for standard kits. Large or custom structures can exceed $20,000.

Q2: Do I need a permit for a double carport?
It depends on your local council, carport size, and whether it is attached to the house. Always check before installation.

Q3: Can I install a double carport myself?
Yes, many DIY kits are designed for assembly by homeowners, but professional installation is recommended for larger or complex structures.

Q4: Which material is best for Australian weather?
Galvanised steel or powder-coated aluminium is most durable. Timber offers a natural aesthetic but requires ongoing maintenance.

Q5: Can I add side panels or lighting later?
Yes, most carport kits allow for optional features to be added for extra protection and comfort.