What are the dimensions of the inside of a Toyota Sienna?
The latest Toyota Sienna—especially the redesign that began with the 2021 model—offers a versatile interior with roughly 33 cubic feet of cargo space behind the third row, about 75 cubic feet behind the second row, and up to around 101 cubic feet with both rear rows folded. The cabin width and headroom are sufficient for family use, though exact figures vary by year, trim, and seating configuration.
Interior space by seating configuration
The figures below reflect common seven- and eight-passenger layouts and describe cargo capacity as seats are added or removed. For precise numbers, refer to the official spec sheet for the model year you’re considering.
- Cargo behind the third row: about 33 cubic feet
- Cargo behind the second row (third row folded or removed): about 75 cubic feet
- Maximum cargo with both rear rows folded: about 101 cubic feet
These volumes illustrate how the Sienna transitions from a people-mhauling family vehicle to a capable hauler for gear and equipment. Actual usable space can vary with floor mats, underfloor storage, and seat configurations.
Cabin width and headroom by row
Understanding how much room passengers have across the cabin and above their heads helps with comfort planning and seating arrangements. Values are approximate and can shift slightly by year and trim.
- Front shoulder room: roughly 63 inches
- Front headroom: about 40 inches
- Second-row shoulder room: roughly 60 inches (varies with bench vs. captain’s chairs)
- Second-row headroom: about 39 inches
- Third-row shoulder room: around 56–58 inches (depends on seating geometry)
- Third-row headroom: about 38 inches
Note: These measurements are intended as a general guide. Exact numbers should be taken from the official specifications for your model year and seating arrangement, since trim and seat design can cause small variations.
Practical notes by year and configuration
The Sienna has maintained a similar interior footprint since its 2021 redesign, with a focus on a flat load floor when rear seats are folded and flexible seating options. Slight differences across trims and years can affect maximum cargo height, width at the beltline, and how much space is available when seats are in use.
How to verify exact numbers for your model
Because interior dimensions can vary by year, trim, and seating configuration, the most reliable approach is to consult the official Toyota brochure or the spec sheet for the exact model year you’re considering. A quick check with a Toyota dealer or the manufacturer’s website will yield the precise figures for your specific Sienna.
Summary
The Sienna provides roughly 33 cu ft of cargo space behind the third row, about 75 cu ft behind the second row, and up to around 101 cu ft with both rear rows folded. Cabin width is around 63 inches at the shoulders, with front headroom near 40 inches and third-row headroom around 38 inches. For exact numbers tailored to a particular year and seating setup, consult the official Toyota specifications for that model year.
What size mattress fits in a Toyota Sienna?
In terms of standard mattress sizes, the closest mattress that will fit in the back of most Toyota models is a Twin. However, standard-sized mattresses do not take advantage of all of the available space. Because of this, it's best to have a custom mattress made.
What are the inside dimensions of a Toyota Sienna?
Toyota Sienna Interior Dimensions
| Specifications | 2023 Toyota Crown |
|---|---|
| Headroom (first / second / third row) | 40.1 / 39.9 / 37.4 in |
| Legroom (first / second / third row) | 40.3 / 39.9 / 38.7 in |
| Shoulder Room (first / second / third row) | 62.4 / 62.7 / 58.5 in |
| Hip Room (first / second / third row) | 59.6 / 66.2 / 48.8 in |
Can a 4x8 sheet of plywood fit in a Toyota Sienna?
Yes, a 4x8 sheet of plywood can fit in a Toyota Sienna, but the ease depends on the model year and how you prepare the vehicle. For the best results, fold down or remove the second and third-row seats for maximum cargo space.
This video demonstrates how to load a 4x8 sheet of plywood into a minivan: 57sThe Landlords Workshop YouTube · Jan 19, 2023
For the best fit
- Fold down or remove the seats: To create a long, flat cargo area, fold down all available seats. In older models, you may need to completely remove the second-row seats, which can be heavy.
- Slide seats forward: If you can't remove the seats, slide them as far forward as possible to maximize the space in the back.
- Lay sheets flat: Once the seats are managed, lay the 4x8 sheet of plywood on top of the folded seats to make a flat surface. You can fit several sheets this way, but note that the front seats might need to be adjusted to make space.
- Load diagonally: If the sheets are too long, you can load them at an angle. A 4x8 sheet of plywood will fit into the vehicle, but you may not be able to close the rear hatch completely.
For the most efficient load
- Use the van's interior as a guide: To load a 4x8 sheet of plywood, angle the sheet into the vehicle and rest it against the back of the front seats.
- Secure the load: Make sure the load is secured before driving to prevent shifting.
- Check cargo anchors: The van has a cargo anchor to help secure the load, but be careful not to damage the front seats.
- Consider using a truck or utility trailer: If you have a lot of sheets to haul, renting a truck or using a utility trailer may be a safer and more efficient option.
How big is the back of a Toyota Sienna?
33.5 cubic feet
The Sienna has 33.5 cubic feet of cargo space behind its third-row seats, 75.2 cubic feet with these seats folded and 101 cubic feet with the second row tipped forward.
