What Size Storage Space Do I Need? (Vehicle Sizing Guide)

What Size Storage Space Do I Need?

One of the easiest ways to overpay for storage is guessing the size you need. Too small and it doesn't fit. Too big and you're paying for empty air every month.

This guide gives you realistic sizing advice for common vehicles in Australia, so you can choose a storage space that actually makes sense.

It's practical, not theoretical.

Why storage size matters more than people expect

Storage is usually priced by length, width and access difficulty. A difference of one or two metres can move you into a higher price band.

The most common mistakes are:

• Forgetting the trailer length
• Ignoring mirror width
• Not allowing room to manoeuvre
• Assuming "standard size" means the same thing everywhere

Knowing your real dimensions saves money and frustration.

Before you measure anything

Don't rely on brochure specs alone.

You need:

• Total length (vehicle + trailer if applicable)
• Total width (including mirrors)
• Height (especially for covered storage)
• Turning space needed to get in and out

If it's on a trailer, measure the trailer, not just the vehicle.

Common storage sizes explained

Storage spaces aren't always labelled consistently, but these are typical categories.

Now let's match those to real vehicles.

Car storage size guide

Add extra space if:

• Mirrors don't fold
• Access is tight
• You'll need to open doors regularly

For long-term storage where access is rare, tighter fits are usually fine.

Caravan storage size guide

This is where people most often get it wrong. Check the caravan storage guide for more on choosing the right spot.

Always measure:

• A-frame length
• Spare wheels
• Bike racks or rear storage boxes

Those extras add up quickly.

Boat storage size guide (on trailer)

Boats are measured by hull length, but storage space is about trailer length. For current pricing by size, see the boat storage cost guide.

Watch for:

• Outboard engines
• Bow rollers
• Trailer guides

They all extend the real footprint.

Truck and trailer storage size guide

Trucks and trailers vary massively, but rough guides help. For tips on keeping your truck or trailer in good shape while stored, read the truck and trailer safety guide.

For heavy vehicles, access and turning space matter as much as the bay length.

Height and covered storage considerations

If you're looking at covered or indoor storage, height becomes critical.

Always ask for clearance height, not just "it should fit".

How much extra space should you allow?

A good rule of thumb:

• Add 0.5–1 metre to length if access is tight
• Add 0.3–0.5 metres to width if you'll be opening doors
• Add more if you're not confident reversing

For long-term storage with minimal access, you can be tighter. For frequent access, space is worth paying for.

Why access can matter more than size

A perfectly sized space is useless if you can't get in or out easily.

Ask about:

• Turning circles
• Gate widths
• Time restrictions
• Whether you can unhitch or move vehicles around

Sometimes a slightly larger, easier space is cheaper in the long run than wrestling a tight one every time.

Common sizing mistakes to avoid

These catch people out regularly:

• Measuring the vehicle but not the trailer
• Forgetting accessories like bike racks or spare wheels
• Assuming all "caravan spaces" are the same
• Not asking about access clearance

Five minutes with a tape measure saves months of hassle.

The bottom line

Choosing the right storage size isn't about finding the biggest space you can afford. It's about finding the smallest space that fits comfortably and legally.

Measure properly, think about access, and don't assume. Storage that fits well costs less, works better and causes fewer headaches. Browse storage options by vehicle type, caravans, boats or trucks, and filter by the dimensions that matter.