27.9 cubic feet behind the third row, 42.6 in the Grand Wagoneer L, and 36.6 inches of third-row legroom in both.
The 2026 Grand Wagoneer holds 27.9 cubic feet behind its third row, opens to 70.8 cubic feet with that row folded, and reaches 116.7 cubic feet with every rear seat down. The long-wheelbase Grand Wagoneer L takes the behind-third-row figure to 42.6 cubic feet, a gain of 14.7. Third-row legroom is 36.6 inches, which is enough for an adult on a real drive rather than a bench that only works for children.
This page is for the NH family buyer deciding whether one of these actually solves the problem, and specifically whether the longer body is worth $3,000. The short answer, developed below, is that the L buys luggage room and nothing else. Every passenger dimension is identical between the two. For a household in NH running kids to Durham and gear to the coast on the same weekend, that distinction is the whole decision.
| Configuration | Grand Wagoneer | Grand Wagoneer L |
|---|---|---|
| Behind the third row | 27.9 cu ft | 42.6 cu ft |
| Behind the second row | 70.8 cu ft | Ask us for the current figure |
| Behind the first row, maximum | 116.7 cu ft | Ask us for the current figure |
| Total passenger plus cargo volume | 210.3 cu ft | 225.1 cu ft |
A note on the two cells that route to us rather than carrying a figure: Jeep's 2026 specification sheet publishes the behind-third-row and total-volume lines separately for each body, but prints the behind-second-row and maximum figures only once. Rather than repeat the short-wheelbase numbers under the L, or carry over last year's, we will pull the current figure for the exact configuration you are considering. Call (603) 431-8900.
Worth knowing about the 116.7-cubic-foot maximum: Jeep labels that measurement "behind the first row," and there is no separate line called maximum cargo volume. Behind-first-row is the maximum. Figures circulating at 44.2 cubic feet behind the third row belong to the previous-generation Grand Wagoneer L and do not describe the 2026 vehicle.
| Measurement | First row | Second row | Third row |
|---|---|---|---|
| Legroom | 40.9 in | 42.7 in | 36.6 in |
| Headroom, no sunroof | 41.3 in | 40.0 in | 39.0 in |
| Headroom, with sunroof | 39.3 in | 38.4 in | 38.5 in |
| Shoulder room | 66.1 in | 65.2 in | 64.4 in |
| Hip room | 63.5 in | 63.0 in | 51.6 in |
| Knee clearance | Not published | 6.7 in | 1.9 in |
These figures are identical in the Grand Wagoneer and the Grand Wagoneer L. Every inch of the L's longer wheelbase went behind the third row. If you are paying the $3,000 premium hoping the people in back get more space, they do not.
Two numbers deserve reading together. Third-row legroom of 36.6 inches is genuinely generous for the class, but third-row knee clearance is 1.9 inches, which is tight. In practice that means an adult sits comfortably with their feet forward, but there is not much room to shift a knee sideways. The other pairing worth understanding is headroom against the sunroof: the tri-pane panoramic roof costs the front row two full inches, the second row 1.6 inches, and the third row half an inch. If your tallest passenger sits up front, sit in a sunroof car before you order one.
The Grand Wagoneer seats seven as standard, in a two-two-three layout using second-row captain's chairs. An eight-passenger layout is available, replacing the captain's chairs with a second-row bench for a two-three-three arrangement. Both layouts are offered on either wheelbase.
The captain's-chair layout is the one most NH families should look at first, and not only for comfort. The walk-through gap between the two chairs is what makes the third row reachable without folding anything, which matters every single time a child climbs in. The bench adds a seat but removes that path. If you regularly carry eight, take the bench; if you carry seven or fewer and load the third row often, the captain's chairs are worth more day to day.
Second-row captain's chairs offer power tilt, slide and recline, and heated second-row seats are standard from the Limited configuration up. The third row is a sixty-forty split-folding bench with power fold and recline, standard on the long-wheelbase body and dependent on configuration on the short wheelbase.
A hands-free power liftgate is standard on every configuration, which is the feature you appreciate in an NH parking lot with a child on one hip and a bag of groceries on the other. Load floor height is 34.0 inches on the standard suspension. On a car with Quadra-Lift air suspension, dropping to the Park setting brings that down to 32.5 inches, and the sill step height drops from 22.9 to 21.3 inches at the same time. That inch and a half is the difference between lifting a heavy cooler and sliding it.
Adjustable roof rail crossbars are available, arriving as part of the heavy-duty trailer tow package and the Summit Obsidian appearance package. Jeep does not publish a roof load rating for the 2026 Grand Wagoneer, so if you are planning a rooftop box or a pair of kayaks, ask us to confirm the rating for your specific build rather than assuming a figure from another vehicle.
| Seat configuration | Volume | What that handles |
|---|---|---|
| All three rows up, Grand Wagoneer | 27.9 cu ft | A full week's groceries for a large household, or several soft weekend bags, or a folded stroller plus a beach load. Not a week of hard suitcases for seven. |
| All three rows up, Grand Wagoneer L | 42.6 cu ft | The same trip with hard luggage for everyone, or hockey bags for a full team run, without folding a seat down. |
| Third row folded, Grand Wagoneer | 70.8 cu ft | A serious hardware-store run, a bicycle upright with the front wheel on, or a five-person ski trip with everything inside. |
| Both rear rows folded, Grand Wagoneer | 116.7 cu ft | Furniture-moving territory, and the configuration people forget this vehicle has. |
Does an adult actually fit in the third row? Yes, and this is the part worth being precise about. At 36.6 inches of legroom and 39.0 inches of headroom without the sunroof, an average adult rides comfortably back there for a couple of hours. The constraints are knee clearance at 1.9 inches and hip room at 51.6 inches, so three adults across is a squeeze even though three children is easy.
And what is left for cargo with them back there? 27.9 cubic feet in the Grand Wagoneer, which is the honest limit of this body. If you regularly carry seven adults and their luggage at the same time, that is the case for the Grand Wagoneer L and its 42.6 cubic feet, and it is the only case that justifies the longer body.
Climate control is tri-zone automatic across most of the NH-spec lineup and four-zone with a dedicated comfort display on the Summit, so the third row is not sharing a setting with the driver. The available Dual-View FamCAM interior camera, standard on Summit, includes night vision and zoom so you can check a rear-facing seat without turning around.
Two available 10.1-inch rear-seat entertainment screens with Amazon Fire TV built in cover the long drive, and the available 10.25-inch front passenger interactive display lets the adult in the right seat start something for the back without reaching across the console. The tri-pane panoramic sunroof matters more here than the spec sheet suggests: the third pane sits over the third row, and light back there is what keeps the rearmost passengers from feeling shut in.
A beach day at Wallis Sands or Odiorne Point on the NH coast is the load this vehicle was built for: chairs, umbrella, a cooler and wet towels on the way home, with the third row still up for the neighbours' kids. The 27.9 cubic feet behind row three swallows that without folding anything, and the air suspension's Park setting drops the load floor while you are packing.
The trip that argues for the Grand Wagoneer L is different. Seven people and hard luggage headed north out of NH for a week, or a weekend at Great Bay with paddleboards and gear for everyone, is where 42.6 cubic feet stops being a number on a page. And the run most Seacoast families actually repeat, the Hampton Beach summer traffic crawl with a full car, is where four-zone climate and a third row that gets its own light do real work more than any capacity figure does.
See which bodies we have in stock, or bring the car seats and the stroller to our NH showroom and we will load them into one before you decide.
27.9 cubic feet behind the third row, 70.8 cubic feet with the third row folded, and 116.7 cubic feet with both rear rows folded. The long-wheelbase Grand Wagoneer L holds 42.6 cubic feet behind its third row.
Yes. Third-row legroom is 36.6 inches and headroom is 39.0 inches without the panoramic sunroof, which is enough for an average adult on a drive of a couple of hours. Knee clearance is 1.9 inches and hip room is 51.6 inches, so two adults back there is comfortable and three across is tight.
No. Legroom, headroom, shoulder room and hip room are identical in both bodies at all three rows. The L's extra seven inches of wheelbase go entirely to cargo behind the third row, taking it from 27.9 to 42.6 cubic feet. Buy the L for luggage, not for passenger space.
Seven as standard, using second-row captain's chairs in a two-two-three layout. Eight is available with a second-row bench in a two-three-three layout. The captain's chairs preserve a walk-through path to the third row; the bench adds a seat but removes it.
The third row is a sixty-forty split-folding bench with power fold and recline. That equipment is standard on the long-wheelbase body and depends on configuration on the short wheelbase, so confirm it on the specific vehicle you are looking at.
Yes, and by different amounts at each row. The tri-pane panoramic sunroof takes front headroom from 41.3 to 39.3 inches, second row from 40.0 to 38.4, and third row from 39.0 to 38.5. The front row gives up the most, so a tall driver should sit in a sunroof-equipped car before ordering one.
Adjustable roof rail crossbars are available, included with the heavy-duty trailer tow package and with the Summit Obsidian appearance package. Jeep does not publish a roof load rating for the 2026 Grand Wagoneer, so ask us to confirm the figure for your specific build before loading a rooftop box or kayaks.
Load floor height is 34.0 inches on the standard suspension. On a vehicle with Quadra-Lift air suspension, the Park setting lowers it to 32.5 inches and the sill step height drops from 22.9 to 21.3 inches, which makes sliding a heavy cooler in considerably easier than lifting it.
Cargo figures settle arguments on paper, but an NH driveway settles them properly. Loading your own stroller and climbing into the third row settles them properly.
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