Mazda CX-8 Boot Dimensions: Complete Cargo Space Guide

When we search for Mazda CX-8 boot dimensions, the first thing we usually find is a number in litres. That is useful, but it does not answer the question most owners actually have: Will my stuff fit?

A 700-litre cargo area sounds enormous until we try to load a bulky pram, a large dog crate, four suitcases, or a flat-pack furniture box. Litres describe volume, while physical dimensions tell us whether an object can actually pass through the tailgate and sit between the wheel arches.

That is why we are going beyond a simple capacity figure.

For later Australian-spec Mazda CX-8 models, Mazda lists 209 litres of cargo capacity with all three rows in use, increasing to 242 litres when the underfloor compartment is included. Fold the third-row seats and the figure rises dramatically to 775 litres including underfloor storage.

A real-world measurement of an earlier CX-8 also recorded approximately 1,220 mm of cargo-floor length with the third row folded and 1,020 mm of width between the wheel arches. Because that figure came from a tape-measure test rather than Mazda's official specification sheet, we should treat it as a practical reference rather than a guaranteed measurement for every CX-8 model year.

So, how practical is the Mazda CX-8 boot in everyday life? Let's open the tailgate and find out.

Mazda CX-8 Boot Dimensions at a Glance

Here are the most useful numbers to know before we dive deeper.

*The physical measurements come from an independent real-world measurement of a 2020 CX-8 rather than a universal Mazda factory specification.

That distinction matters. Trims, seat positioning, upholstery, measuring points, cargo covers and model-year changes can alter usable dimensions slightly.

Why Boot Litres and Boot Dimensions Are Different

Imagine two cardboard boxes.

Both can hold 100 litres, but one is long and narrow while the other is short and square. They technically have identical capacity, yet completely different objects will fit inside them.

A vehicle boot works the same way.

When we're carrying normal supermarket bags, litres give us a decent indication of practicality. When we're carrying something rigid, however, we need measurements such as:

• floor length;
• minimum width;
• maximum width;
• wheel-arch width;
• cargo height;
• tailgate opening width;
• tailgate opening height;
• seat-folding configuration.

This explains why researching Mazda CX-8 cargo dimensions rather than simply Mazda CX-8 boot capacity makes sense.

Mazda CX-8 Boot Capacity With Seven Seats Up

With the third-row seats upright, the later Australian CX-8 offers 209 litres of VDA-rated cargo room up to the roof.

Add the storage compartment beneath the boot floor and total available capacity reaches 242 litres.

Is 209 litres huge?

No.

But that is hardly surprising in a relatively streamlined seven-seat SUV. The third row physically occupies the space that would otherwise become the main cargo compartment.

Think of the CX-8 as wearing two different hats. With seven seats deployed, it behaves like a people mover with a small luggage compartment. Drop those rear seats and it suddenly behaves much more like a large family SUV.

What Fits Behind the Third Row?

The space is best suited to smaller, flexible objects.

We would generally expect it to work well for things such as grocery bags, backpacks, school bags, a few soft overnight bags or compact pieces of luggage.

Bulky items become more challenging.

A conventional full-size pram, for example, may require careful positioning, removal of wheels or folding one side of the third row depending on the pram's shape.

This is exactly why the litres figure should never be interpreted as a guarantee.

The Underfloor Storage Makes a Difference

One clever detail is the hidden space beneath the main cargo floor.

Mazda originally described an additional 33 litres of sub-boot storage. That explains the difference between 209 litres of conventional boot space and the later 242-litre figure that includes the underfloor compartment.

Thirty-three litres may not sound revolutionary, but hidden storage is often more useful than its number suggests.

We can use it for items we want permanently in the vehicle without allowing them to roll around the main boot:

• emergency supplies;
• tyre accessories;
• charging cables;
• reusable shopping bags;
• cleaning products;
• compact tools;
• picnic accessories.

It also helps keep the visible load floor clean.

Mazda CX-8 Boot Dimensions With Third Row Folded

Here is where the CX-8 becomes significantly more practical.

Mazda's later specifications quote 775 litres with the third-row seats folded and the underfloor compartment included.

Older Mazda material quoted 742 litres with the third row down plus a separate 33-litre underfloor compartment. Add those together and we arrive at the same 775-litre total.

So there is no mysterious 33-litre cargo-space growth hiding between those figures. It is largely a difference in how Mazda presented the underfloor storage.

Approximately 1,220 mm of Usable Floor Length

A real-world CX-8 measurement recorded approximately 1,220 mm of boot-floor length, with the second-row seats pushed fully back.

That's about:

• 122 cm
• 1.22 metres
• 48 inches

This is a far more meaningful number if we're standing outside a furniture store wondering whether a large box will fit.

Better still, the second row slides.

That means we can sacrifice some rear-passenger legroom to create additional cargo length when necessary.

It is one of those features that rarely dominates a brochure but can make a huge difference in daily family use.

Approximately 1,020 mm Between the Wheel Arches

The same independent measurement found roughly 1,020 mm between the rear wheel arches.

This gives us a useful minimum-width reference.

The cargo compartment becomes wider above and around certain areas, but the wheel arches form one of the key pinch points when loading large rigid items.

A box 1,100 mm wide might theoretically fit in the wider portion of the boot but still fail to sit flat on the floor because it cannot pass between those arches.

That is why measuring the narrowest usable point matters.

Mazda CX-8 Boot Space With the Second and Third Rows Down

Need more than a family-sized boot?

Fold both rear seating rows.

Mazda's original Australian launch information quoted an impressive 1,727 litres of luggage capacity with the second row laid flat, while separately identifying the additional 33-litre underfloor storage space.

At this point the CX-8 transforms.

Rather than a conventional boot, we effectively have a long cargo deck extending forward toward the front seats.

This configuration is useful for moving:

• large flat-pack boxes;
• camping equipment;
• bicycles with suitable preparation;
• long sporting equipment;
• large amounts of luggage;
• household items;
• bulky hardware-store purchases.

Is the Mazda CX-8 Boot Floor Flat?

The folded-seat layout creates a broadly continuous cargo surface, making long objects much easier to accommodate than they would be with the second row upright.

We should still expect normal SUV imperfections rather than the ruler-flat load floor of a dedicated commercial van.

Seatbacks, hinges, trim panels and floor transitions can create slight changes in angle or height.

For boxes and luggage, this usually means very little.

If we're planning to sleep in the CX-8, transport delicate furniture or create a camping platform, those details become much more important.

How the Sliding Second Row Changes Boot Length

This feature deserves its own section because it changes how we should think about the published Mazda CX-8 boot dimensions.

The second row can slide fore and aft.

With it pushed rearward, passengers enjoy more legroom but the luggage floor becomes shorter.

Slide it forward and we gain additional space behind it.

An independent test measured the approximately 1,220 mm cargo-floor length while the second row was pushed all the way back, meaning additional usable length could be created by moving that row forward.

Why Adjustable Cargo Length Is So Useful

Consider a road trip with two younger children.

They may not require every millimetre of second-row legroom.

We can move their seats slightly forward and suddenly create extra breathing room for suitcases behind them.

The CX-8 therefore gives us something better than a single fixed boot measurement: flexibility.

It is a bit like having an adjustable shelf in a cupboard. The total cupboard size stays the same, but rearranging the internal divisions lets us use that space more intelligently.

Can a Pram Fit in the Mazda CX-8 Boot?

With the third row folded, a normal family pram should be far less troublesome than it is in the seven-seat configuration.

We have substantially more cargo length and hundreds of litres of additional volume.

The more complicated question is whether a particular stroller fits with all seven seats occupied.

That depends heavily on:

• folded pram length;
• folded pram thickness;
• wheel diameter;
• whether wheels can be removed;
• orientation inside the boot.

A compact umbrella stroller is obviously easier to accommodate than a large double pram.

Our advice is wonderfully low-tech: measure the folded stroller before buying the vehicle.

Numbers beat guesswork every time.

How Many Suitcases Fit in a Mazda CX-8?

Suitcases illustrate why flexible seats matter so much.

With Seven Seats in Use

Behind the third row, we should think in terms of smaller luggage rather than a mountain of full-size hard-shell cases.

Soft bags are particularly useful because they can bend into awkward corners and make better use of vertical space.

With Five Seats in Use

Drop the third row and the story changes dramatically.

With 775 litres available including the underfloor storage area, the CX-8 becomes well suited to airport runs and family road trips.

Several medium or large suitcases can be arranged across the cargo area, although exact capacity naturally depends on their dimensions rather than the marketing label printed on the suitcase.

A "large" suitcase from one brand can be surprisingly different from another.

Will Golf Clubs Fit in the Mazda CX-8?

Golf bags present a different challenge because they are long rather than especially bulky.

With the third row folded, the CX-8's useful floor length makes carrying golf equipment relatively straightforward.

Depending on bag length and club arrangement, diagonal positioning may be useful.

Carrying several golf bags plus passengers could require moving the second row forward slightly or stacking equipment.

Again, this is where the CX-8's adjustable seating becomes its secret weapon.

Can a Dog Fit in the Mazda CX-8 Boot?

With five seats configured and the third row folded, the cargo area provides considerably more room for a dog than the small compartment behind an upright third row.

But volume alone should never determine whether a dog crate fits.

We need to measure:

1. crate width;
2. crate length;
3. crate height;
4. tailgate opening;
5. narrowest interior width.

The approximate 1,020 mm width between the wheel arches is especially valuable when choosing a crate intended to sit directly on the boot floor.

Do not simply compare the crate's advertised volume with the CX-8's 775 litres. Shapes matter more than volume here.

Can You Fit a Mattress in a Mazda CX-8?

Interestingly, a long-term test demonstrated that a boxed single mattress could fit between the CX-8's wheel arches, reinforcing how useful that roughly 1,020 mm minimum floor width can be.

For camping, folding both rear rows produces enough length to make a sleeping platform conceptually possible.

However, anyone building a proper car-camping setup should measure their own CX-8 directly.

Seat positions, front-seat adjustment, mattress thickness and sleeping height all matter.

Sleeping in a CX-8

The theoretical formula is simple:

fold seats + create level surface + add mattress = tiny mobile bedroom.

Reality requires more thought.

We also need ventilation, privacy, safe parking, interior clearance and enough space to avoid crushing luggage around us.

Still, compared with a compact crossover, the CX-8 gives us a useful foundation.

Mazda CX-8 Boot Opening Dimensions

This is an area where caution matters.

Mazda's commonly published Australian specifications concentrate on VDA cargo volume rather than providing a universal official tailgate opening width and height.

Consequently, we should not invent a precise figure and present it as factory data.

And the opening can matter as much as the interior itself.

Imagine a wardrobe that is enormous inside but has a tiny door. The available internal volume is irrelevant if the object cannot get through the opening.

Measure the Tailgate Before Carrying Bulky Objects

For rigid cargo, measure:

• maximum opening width;
• width near the bottom of the opening;
• opening height;
• height from ground to boot floor;
• width between wheel arches;
• length to second-row seatbacks.

Give yourself a few centimetres of clearance rather than trying to match measurements exactly.

Interior plastics and trim pieces are not particularly forgiving when a heavy box meets them.

Mazda CX-8 Boot vs Mazda CX-9

The CX-8 was designed to offer much of the three-row practicality of the CX-9 in a narrower package.

A particularly interesting real-world comparison found that the CX-8's cargo floor was only about 60 mm shorter than the CX-9's, while both measured approximately 1,020 mm between their wheel arches in that test.

That's impressive.

It means the CX-9's larger exterior dimensions do not automatically translate into a dramatically wider floor between the wheel housings.

For families who found the CX-9 unnecessarily bulky, this was one of the CX-8's biggest attractions.

Mazda CX-8 Boot vs Mazda CX-5

The comparison with the CX-5 is different.

The CX-8 offers three rows of seating, a longer body and substantially greater flexibility when those rear seats are folded.

Its real advantage is not simply "a bigger boot."

It is configuration.

We can carry seven occupants when required, five people plus substantial luggage on the next trip, and then fold both rear rows when moving a large object.

That flexibility is difficult to express through one cargo-capacity number.

Does CX-8 Trim Level Affect Boot Dimensions?

Across the later Australian CX-8 range, Mazda published the same core cargo-volume figures for Sport, Touring, Touring Active, GT SP, Asaki and Asaki LE: 209 litres with the third row up, 242 litres including underfloor storage, and 775 litres with the third row folded including that storage compartment.

That makes comparing trims simpler.

However, equipment differences can still affect how the cargo area feels in practice.

A powered tailgate, cargo accessories, mats, luggage covers or aftermarket equipment may slightly influence accessibility even when basic body dimensions remain unchanged.

Do Mazda CX-8 Boot Dimensions Change by Model Year?

Some details do.

For example, CarsGuide lists the 2023 CX-8 at 4,925 mm long, 1,845 mm wide and 1,720 mm high, while earlier models were listed at approximately 4,900 mm long and 1,840 mm wide.

That does not mean every interior boot measurement grew by the same amount.

Exterior redesigns can add millimetres to bumpers and body panels without dramatically changing cargo-floor geometry.

This is why we should be especially careful when mixing dimensions from different years.

Why Used-Car Buyers Should Measure the Exact Vehicle

The CX-8 is now particularly relevant as a used vehicle in markets such as Australia, where Mazda announced in October 2023 that Australia-bound production would end that year.

If we're shopping for one, taking a tape measure to the exact vehicle is easy and genuinely useful.

Measure the car we are buying rather than relying entirely on a figure from another model year.

How to Measure a Mazda CX-8 Boot Yourself

We only need a tape measure and five minutes.

Step 1: Measure the Minimum Width

Measure between the wheel arches at floor level.

This tells us whether wide boxes and crates can sit flat.

Step 2: Measure Cargo-Floor Length

Measure from the closed tailgate position to the third-row or second-row seatbacks, depending on the configuration we plan to use.

Do not measure with the tailgate open all the way to its outer edge. We need the space available once it closes.

Step 3: Measure Tailgate Opening Height

Measure the narrowest useful vertical opening.

This matters for dog crates, appliances and tall boxes.

Step 4: Measure Tailgate Opening Width

Check both the widest point and the narrower lower portion.

A tapered opening can fool us.

Step 5: Check Diagonal Space

Long objects often fit diagonally even when they exceed the straight-line boot width.

This trick can make the difference between "impossible" and "no problem."

Write the Measurements in Your Phone

It sounds trivial, but this is genuinely useful.

Once we know our boot's minimum width, opening height and maximum practical length, furniture-store guesswork disappears.

See a 980-mm-wide box?

Check the note.

Done.

How to Get More Usable Space From the CX-8 Boot

The CX-8 rewards intelligent packing.

A few simple habits can make the cargo compartment feel noticeably larger:

• use soft bags instead of rigid suitcases when possible;
• store small objects beneath the boot floor;
• slide the second row forward when passengers have spare legroom;
• fold only one third-row seat when six seats are required;
• remove unnecessary cargo accessories;
• place long objects diagonally;
• load rectangular objects first and flexible bags afterward.

The objective is not merely filling every litre. It is eliminating wasted gaps.

Use the Split-Folding Seats Strategically

One of the greatest advantages of a three-row SUV is that we do not always need an all-or-nothing arrangement.

Need six seats?

Fold one third-row section.

Need five?

Fold the entire third row.

Need maximum carrying space?

Fold the second and third rows.

This adaptability is arguably more valuable than a gigantic fixed boot.

Is the Mazda CX-8 Boot Big Enough for a Family?

For many families, yes—with one important condition.

If we routinely carry seven people and substantial luggage simultaneously, the 209-litre main compartment behind the third row may feel restrictive.

If we normally use five seats and treat the third row as occasional seating, the CX-8 becomes considerably more attractive.

The third row folds away and suddenly we have around 775 litres including underfloor storage, plus a long, useful cargo floor.

That is the CX-8's sweet spot.

It works especially well for families who want occasional seven-seat capability without driving an enormous SUV every day.

Mazda CX-8 Boot Dimensions: What Really Matters

After all the numbers, here is the practical takeaway.

The Mazda CX-8 boot dimensions make much more sense when we think about the vehicle as a configurable space rather than a single cargo box.

With seven seats raised, luggage room is modest at 209 litres, or 242 litres when Mazda includes the underfloor storage compartment.

Fold the third row and the CX-8 becomes a much more capable load carrier, offering 775 litres including underfloor storage. A real-world measurement of an earlier model recorded roughly 1,220 mm of floor length and 1,020 mm between the wheel arches, giving us valuable physical dimensions for large objects.

Fold the second row too and older Mazda specifications quoted as much as 1,727 litres, plus the separate underfloor storage compartment.

In other words, the CX-8 changes personality depending on how we arrange its seats.

Seven people? Small boot.

Five people? Big family boot.

Two people and a furniture-store mission? Almost a small cargo van.

That versatility is what makes the numbers interesting.

Frequently Asked Questions

1. What are the Mazda CX-8 boot dimensions with the third row folded?

A real-world measurement of a 2020 CX-8 found approximately 1,220 mm of boot-floor length and 1,020 mm between the wheel arches with the third row folded and the sliding second row positioned fully rearward. These are independent tape-measure figures rather than universal factory dimensions, so individual vehicles should be checked before transporting tight-fitting cargo.

2. What is the Mazda CX-8 boot capacity with seven seats?

Later Australian Mazda specifications quote 209 litres with all three rows in place. Including the underfloor storage compartment increases total available capacity to 242 litres.

3. How much boot space does the Mazda CX-8 have with five seats?

With the third-row seats folded, Mazda quotes 775 litres including the underfloor storage area in its later Australian specification brochure. Earlier Mazda figures listed 742 litres plus a separate 33-litre underfloor compartment, which produces the same combined total.

4. Can you sleep in the back of a Mazda CX-8?

Potentially, yes. Folding the second and third rows creates a long cargo platform, and real-world testing has demonstrated enough width between the wheel arches for a boxed single mattress. Comfort will depend on occupant height, front-seat position, mattress size and how level the folded seats are.

5. Is the Mazda CX-8 boot bigger than the CX-9 boot?

No, but the difference can be smaller than the exterior dimensions suggest. One independent comparison measured the CX-8's boot floor at roughly 1,220 mm long, only around 60 mm shorter than the tested CX-9, while both measured approximately 1,020 mm between the wheel arches.

If you want to know other articles similar to Mazda CX-8 Boot Dimensions: Complete Cargo Space Guide you can visit the category Service and Parts.