Sheds

What Size Shed Do You Need? A Practical Guide to Choosing the Right Shed

8 Sep 2026

What Size Shed Do You Need? A Practical Guide to Choosing the Right Shed

What size shed do I need?

The answer depends on much more than the size of your vehicle.The right shed should suit your current lifestyle while giving you flexibility for the future.

At Steeline, every shed is custom designed to suit your property, needs and location. Rather than choosing from standard sizes, you can create a shed that’s practical, functional and built to last.

Start by thinking about how you’ll use your shed

Before looking at dimensions, think about what your shed needs to do.

Ask yourself:

  • Will it simply house a vehicle?
  • Do you need additional storage?
  • Will it become a workshop?
  • Do you need space for a ride-on mower or trailer?
  • Will you be storing camping gear, bicycles or sporting equipment?
  • Could it become a home gym or games room?
  • Do you hope to own a caravan, boat or larger vehicle in the future?

Many people begin by planning for today’s needs, only to discover they’ve outgrown their shed within a few years.

A little extra space now can save a lot of frustration later.

Common garage and shed sizes

While every Steeline shed is custom made, these examples provide a useful starting point.

Typical Use Common Size
Single garage 3m x 6m
Double garage 6m x 6m
Triple garage 9m x 6m
Double garage with workshop 6m x 9m

These aren’t fixed rules. They’re simply examples that help you begin planning.

Modern vehicles are often wider and longer than many people expect, especially dual-cab utes and large SUVs. If you also want shelving, bicycles, camping gear, a workbench or room to comfortably walk around your vehicles, it’s worth allowing additional space.

A shed should be practical to use every day, not just large enough to close the roller door.

Think beyond parking the car

A shed is often much more than a place to keep vehicles. It can become a workshop, gym, hobby space or weekend retreat.

If you’re planning to add a pool table, exercise equipment, a workbench or seating area, consider the space needed to comfortably use it.

Designing around how you’ll actually use your shed will help create a much more functional space.

Do you need a workshop?

For many Australians, the shed becomes the place where projects happen.

Whether you enjoy woodworking, restoring vehicles, gardening or DIY, having a dedicated workspace makes all the difference.

Instead of squeezing a workbench beside your car, consider adding extra width or length to create a practical workshop area. Many customers find that extra workspace is one of the best decisions they make.

Don’t forget shed height

Shed height is one of the most important – and often overlooked – considerations.

A standard garage may be suitable for your current vehicle, but what happen if you later buy:

  • A caravan?
  • A camper trailer?
  • A boat?
  • A four-wheel drive with a roof rack?
  • A vehicle with additional accessories?

Extra height can also provide valuable overhead storage for items such as kayaks, ladders, roof pods and seasonal equipment.

Planning for additional height now can prevent costly modifications later.

Plan for the future

One of the most common things shed owners say is:

“I wish we’d built it a little bigger.”

Your needs can change over time. You may buy a caravan, upgrade your vehicle, take up a new hobby or need additional storage.

Building with some extra capacity gives you flexibility and ensures your shed continues to work for you for years to come.

Choosing a shed for a lifestyle property

For larger blocks and acreage, a shed often needs to accommodate more than cars.

You may need space for:

  • Tractors
  • Ride-on mowers
  • Horse floats
  • Trailers
  • Boats
  • Caravans
  • Firewood
  • Workshops
  • General farm storage

Multiple roller doors and drive-through access can make it easier to store and manoeuvre larger vehicles and machinery.

What size farm or machinery shed do you need?

Farm sheds are rarely one-size-fits-all. The right design depends on your property, equipment and future plans.

When planning a machinery shed, consider:

  • What equipment needs to fit today?
  • Will machinery become larger in future?
  • Do you need drive-through access?
  • Will the shed also include a workshop?
  • Will hay, feed or other materials be stored inside?
  • Do you need covered loading areas?

Our experienced team can help design a shed that suits both your property and the conditions at your location.

Consider your property before choosing a shed

Sometimes the biggest limitation isn’t your budget. It’s your block.

Before deciding on shed size, consider:

  • Available building area
  • Property boundaries
  • Council setbacks
  • Easements
  • Existing buildings
  • Trees
  • Site slope
  • Vehicle access

A slightly different layout may allow you to build a much more practical shed.

Every Steeline shed is custom designed

Unlike off-the-shelf sheds, every Steeline shed is made to order.

That means you can customise:

  • Dimensions
  • Wall height
  • Roof style
  • Roller door sizes and locations
  • Personal access doors
  • Windows
  • Skylights
  • Colours
  • Internal bays

Whether you need a compact suburban garage or a large rural machinery shed, Steeline can design a solution to suit your needs.

Built for Australian conditions

Every Steeline shed is engineered for its location using specialised design software and is backed by ShedSafe accreditation.

We use premium Australian-made BlueScope steel products including COLORBOND® steel, ZINCALUME® steel and Galvaspan® steel to ensure your shed is built for Australian conditions.

Your shed is also manufactured by your local Steeline branch, supporting Australian manufacturing while giving you access to local expertise and advice.

Talk to your local Steeline shed expert

Choosing the right shed isn’t just about measurements – it’s about understanding how you’ll use the space now and into the future.

Whether you’re replacing an old garage, building a workshop or planning a large machinery shed, Steeline can help design a shed tailored to your property, needs and budget.

The right shed should still be the right shed 10 years from now.

Frequently Asked Questions

What is the standard size of a single garage?

A common single garage size is around 3 metres wide by 6 metres long. However, larger vehicles or additional storage may require extra width or length.

What is the standard size of a double garage?

A typical double garage measures around 6 metres by 6 metres. Many homeowners choose a larger design if they want workshop space or additional storage.

Should I build a bigger shed than I currently need?

If your budget and property allow, building slightly larger than your current needs can provide valuable flexibility for future vehicles, hobbies and storage.

How high should a caravan shed be?

The required height depends on your caravan, including roof-mounted accessories such as air conditioners or solar panels. It’s important to measure your caravan carefully and allow additional clearance for safe access.

Can I customise the size of my Steeline shed?

Yes. Every Steeline shed is custom designed to suit your property, intended use and local site conditions.

Can I add extra roller doors and windows?

Yes. Roller doors, personal access doors, windows and skylights can all be incorporated into your custom shed design.

What if I already have a concrete slab?

An existing slab may limit the overall size of your shed, but many other design features can still be customised to suit your needs.

What size shed is best for a workshop?

The ideal size depends on your equipment and activities. Many homeowners choose to add extra length or width so they have dedicated workspace separate from vehicle parking.

Can Steeline build farm and machinery sheds?

Yes. Steeline designs custom rural sheds for machinery, livestock operations, workshops, hay storage and many other agricultural applications.

Are Steeline sheds engineered for Australian conditions?

Yes. Every shed is engineered for its location and designed using specialised engineering software. Steeline sheds are also backed by ShedSafe accreditation.

What steel is used in Steeline sheds?

Steeline sheds are manufactured using premium Australian-made BlueScope steel products, including COLORBOND® steel, ZINCALUME® steel and Galvaspan® steel.

How do I choose the right shed size?

Start by considering how you’ll use the shed today, then think about your future needs. Allow room for storage, workshops, larger vehicles and comfortable access. Your local Steeline branch can help design the right shed for your property.

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