Can you fit a mattress in the back of a Subaru Outback?
Yes. A standard twin-size mattress can fit in the Outback’s cargo area when the rear seats are folded, while larger mattresses generally do not fit flat in stock configuration.
What the cargo space looks like in practice
The Outback offers about 75 inches of cargo length with the rear seats folded, and roughly 41–44 inches of width between the rear wheel wells. The interior height behind the rear seats is sufficient to lay a mattress flat, creating a practical loading floor for a single twin mattress. These dimensions can vary slightly by model year and whether all rear seats are used or folded differently.
Suitable mattress sizes for the Outback
Here’s how common mattress sizes typically fit in the cargo area when the rear seats are folded flat.
- Twin (38 x 75 inches) — fits lengthwise and width-wise in most Outback configurations; the simplest and most reliable option.
- Twin XL (38 x 80 inches) — longer than the available cargo length; will not fit flat in standard configuration.
- Full/Double (54 x 75 inches) — length matches, but the width often exceeds the cargo width; may only fit diagonally or with significant maneuvering, which is not recommended.
- Queen (60 x 80 inches) — generally does not fit in stock cargo space; a diagonal fit is unlikely and impractical.
In practical terms, the twin is the reliable option for most Outback owners, with larger sizes posing mounting and fit challenges.
Tips for loading a mattress in the Outback
Maximize the usable space and protect both the mattress and vehicle with these loading guidelines.
- Fold the rear seats completely flat to extend the cargo floor to its full length.
- Measure your specific model year’s cargo length after folding the seats to confirm the fit.
- Place a protective blanket or tarp on the floor to prevent damage and ease sliding.
- Slide the mattress in on its side or edge if width constraints exist, then rotate it flat once inside.
- Consider a thinner profile or topper if you must fit a non-tTwin size, to improve chances of a safe, snug fit.
Following these steps can help you transport a mattress more safely and efficiently in the Outback.
What to do if you need more space
If a twin does not meet your needs or you’re transporting a larger mattress, there are practical alternatives that keep the interior organized and safe.
- Roof rack with a protective bag or a dedicated roof-mounted mattress carrier for outside storage.
- Hitch-mounted cargo carrier to carry the mattress outside the cabin while keeping interior space available.
- Consider delivering or renting a smaller mattress if possible, or disassembling the mattress (where feasible) for easier transport.
These options can provide safer, more comfortable transport for larger mattresses without forcing a tight fit inside the vehicle.
Summary
Bottom line: a twin-size mattress typically fits in the Subaru Outback with the rear seats folded, making it a practical choice for camping trips or guest accommodations. Larger mattresses, such as full or queen, rarely fit flat in stock cargo space and may require diagonal placement or external transport methods like a roof rack or hitch carrier. Always measure your specific model-year cargo area before attempting to load.
How long is the cargo area of a Subaru Outback with seats down?
From 2021 through 2025, cargo room is consistent: 32.6 cubic feet behind the rear seats and 75.6 cubic feet with the second row folded. These models prioritize a long load floor and wide opening, which is why the “seats-down” number is so strong for road-trippers and DIY haulers.
What can fit in the back of a Subaru Outback?
A camp stove, hiking gear, tents, ice chests, fishing poles - all can be packed into the back of your Subaru Outback. Naturally, all Outback models come standard with roof rails for kayaks, skis, and surfboards so your big outdoor toys can stay out of the way on top.
Can a queen size mattress fit in a Subaru?
Yes! But to be fair it was a new boxed memory foam mattress. You might be able to fit one in unboxed, if it's flexible enough, but likely not one with springs or a box spring.
Will a full mattress fit in a Subaru Outback?
No, a standard full-size mattress (53 inches wide) cannot fit completely inside a Subaru Outback because the narrowest part of the interior is approximately 42 inches, according to this Facebook post. However, it is possible to fit certain types of full-size mattresses, such as foam or inflatable ones, by folding the seats, with the hatch partially or fully open, and securing the mattress to the roof rack with straps.
Fitting a full-size mattress
- Foam or inflatable: You can fit a full-size foam or inflatable mattress inside if the seats are folded down and the hatch is open, but the mattress will likely overhang the rear.
- Securing the mattress: To make it drivable, you must securely strap the mattress to the roof rack, using the doors to pass the straps through if necessary.
- Safety precautions: Drive slowly, keep to back roads, and be sure to flag the overhanging portion of the mattress as required by law.
Alternative options
- Trimmed mattress: Consider trimming a larger foam mattress to better fit the interior space, as shown in this Facebook post.
- Twin mattress: A twin mattress (around 38 inches wide) will fit easily inside with room to spare for other items, as noted in this Baldwin Subaru blog post.
- Custom mattress: You can also get a custom-sized mattress designed specifically for the Outback to maximize the available space, according to Mattress Insider.
