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Still in the loop
The center mesh panel keeps sightlines and airflow open between the front and back seats — the ride still feels connected, not shut off.
RoadTuck SeatSpan - Hard-Bottom Dog Backseat Extender
Single / Orange
$129.99
Sale price
$129.99
Regular price
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ROADTUCK — DOG TRAVEL GEAR
RoadTuck SeatSpan - Hard-Bottom Dog Backseat Extender
$129.99
Sale price
$129.99
Regular price
SeatSpan: $129.99. Riding in two cars? Choose the 2-Car Family Bundle above and save $59.99.
Fit
Sedans, crossovers, SUVs, trucks and minivans. The platform measures 52.3 in wide by 24.6 in deep, and the side flaps drape over your door panels rather than needing that much flat bench width — which is why it works in a small hatchback and a crew-cab truck alike.
Unusually narrow back seat? If it genuinely doesn't work for your vehicle, that's covered for 30 days — replacement or refund, and usually nothing to ship back. Returns
Full dimensions ›Every payment option appears at checkout — Apple Pay available above for iPhone.
SeatSpan bridges the rear footwell with a hard-bottom platform, turning the back seat into one flat, usable space for your dog — with a tough, wipe-clean shell that covers the seat bench and door-facing areas from everyday mud, hair, and drool.
RoadTuck SeatSpan
Your dog rides back there too.
Give them room to actually settle.
SeatSpan bridges the footwell gap with a hard-bottom platform, so the back seat stops being a cushion with a hole behind it and starts being one flat space your dog can stretch out on — while the tough, wipe-clean shell keeps the mess off your seats and doors.
Get SeatSpan — $129.99 Fits most sedans, SUVs, and trucks — measure first · Not a substitute for a proper pet restraintThe problem with every hammock cover
The bench was never the problem.
The gap was.
Soft hammock covers protect your seats, but they still hang loose over the footwell — so your dog braces, slides, or gives up and curls into the gap instead of actually lying down. SeatSpan closes that gap with a rigid, reinforced platform, so the entire back row — floor included — becomes one flat space they can turn around in, stretch out on, and settle into without bracing against every turn.
Built to hold its shape
Not a sling. A floor.
A hammock cover sags the second real weight lands on it. SeatSpan's reinforced hard-bottom platform is built to stay flat — no matter how many times your dog shifts, turns, or flops down mid-drive. It's the difference between a dog who's constantly resettling and one who lies down once and stays there.
- Reinforced platform spans the full footwell
- Stays flat under real, everyday weight
- Room for one large dog or two mid-size dogs to share the row
See it side by side
This is the upgrade a hammock can't make.
Built around real dog travel
Still connected. Still organized. Still easy to clean.
The rest of SeatSpan is built around how dog owners actually use the back seat — daycare runs, vet visits, road trips, and the muddy trail days that come with loving a dog who goes everywhere with you.
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Everything within reach
Built-in pockets keep leashes, bags, and a travel bowl exactly where you need them, instead of sliding around the floor.
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The mess wipes right off
A damp cloth handles mud and drool; a vacuum or lint roller lifts hair straight off the surface. Clean the cover, not your upholstery.
More than one trick
One SeatSpan. However the day goes.
Hammock mode for the ride over. Flat dog-seat mode for the ride home. Trunk mode for hauling gear. Even a picnic blanket when you get there. It folds into whatever the day actually calls for.
Fit first
Measure once. Order with confidence.
SeatSpan is built to fit most sedans, SUVs, and trucks — a 52.3 in wide platform with a 24.6 in deep floor section, folding down to a 25 × 17 × 7 in carry case when you're done. Vehicle interiors still vary, so take 60 seconds to check your rear bench width, the space toward the front seatbacks, and your headrest layout before you order. It's a faster fix than a return.
One honest note: SeatSpan is a comfort and protection layer, not a crash restraint. Pair it with a properly fitted harness or restraint for your dog and vehicle.
What's actually in it
Built from the inside out.
Underneath the quilted shell is a reinforced, multi-layer build — a load-bearing plate and shock-absorbing foam sandwiched between a water-resistant PU-coated face and a silicone anti-slip base — so it protects like a heavy-duty cover and holds its shape like a platform.
Choose your setup
One car, or both of them.
Get one SeatSpan for your primary vehicle, or the 2-Car Family Bundle if your dog rides in more than one car. Straps, anchors, and the storage pouch are included with every unit.
RoadTuck SeatSpan$129.99
Choose your SeatSpan
Shipping and return details are in the footer.
- Bridges the footwell gap
- More usable back-seat space
- Bench + door-side coverage
- Mesh viewing panel
- Six ways to configure it
- Wipes clean in minutes
The back-seat gap
The bench gives them one surface.
The footwell takes the rest away.
SeatSpan bridges that gap with a hard-bottom platform, so the whole back row becomes one flat, usable space — with coverage for the seats and doors where fur, mud, and paws actually land.
Setup
Watch one go in.
Panels into the sleeves, water off the surface, straps around the headrests, dog on board. No narration and nothing to read — just the thing being used.
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Rigid panels slide into the sleeves — the reason it holds its shape instead of hanging like a hammock.
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Water poured straight onto the surface beads up and wipes off by hand.
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Straps loop over the rear headrests and the anchors clip in below.
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A full-grown retriever stands on the span, bench and footwell as one surface.
A simple decision
Fit first. Then choose one or two.
No countdown clock and no promise that it fits every vehicle — just a straight measurement guide and the current offer.
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Measure your rear cabin
Check your rear bench width and front-to-back cabin space against SeatSpan's 52.3 × 24.6 in platform.
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Position and secure it
Lay the platform across the bench and footwell, loop the straps around the headrests, and clip in the seat anchors.
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Recheck before every drive
Confirm the attachments and platform position before your dog loads up, and pair it with a proper restraint or harness.
SeatSpan is a comfort and protection layer, not a pet restraint. Pair it with a restraint suited to your dog and vehicle.
Fit comes first
Measure the space your dog will actually use.
52.3 × 24.6 in
What to check
- Rear bench width Measure edge to edge
- Seat-to-seatback depth Check usable coverage
- Headrests Confirm strap attachment points
- Seat-belt access Confirm your buckle layout
How to measure, if you want to
- Measure the rear bench from door side to door side at the widest usable point.
- Measure from the rear seatback toward the front seatbacks with the front seats in your normal driving positions.
- Compare your measurements against SeatSpan's 52.3 × 24.6 in platform and allow for your vehicle's contours.
Door shape, seat contours, headrest style, center consoles, and front-seat position can all affect fit.
Straight talk: the platform is 52.3 × 24.6 in, and the side flaps drape over your door panels rather than needing that much flat bench width — which is why it works in everything from small hatchbacks to crew-cab trucks. If your back seat is unusually narrow the flaps simply ride higher up the doors. Either way you have 30 days to send it back.
What SeatSpan changes
A more usable rear cabin, built around the dog-travel routine.
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Hard-bottom platform
Spans the rear footwell and holds its shape, so the whole back seat becomes one continuous space instead of a bench with a hole behind it.
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Bench + door-side coverage
A wraparound shell covers the seat bench and the door-facing areas dogs actually brush against getting in and out.
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Mesh center panel
Keeps sightlines and airflow open between the front and back seats, so the ride still feels connected.
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Road-ready access
Seat-belt openings, adjustable straps, seat anchors, and storage pockets built around how you actually load up for a drive.
Choose your option
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1×
SeatSpan backseat extenderStraps, seat anchors, and storage pouch included
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2×
SeatSpan backseat extenders2-Car Family Bundle — $199.99, save $59.99
SeatSpan: $129.99 single, or $199.99 for the 2-Car Family Bundle.
SeatSpan specs
- Platform size
- 52.3 × 24.6 in (134 × 63 cm), open
- Folded size
- Approx. 25 × 17 × 7 in carry case
- Platform
- Hard-bottom footwell bridge with load-bearing plate
- Coverage
- Rear bench and door-side areas
- Center panel
- Breathable mesh viewing window
- Access
- Seat-belt openings, adjustable straps, seat anchors
- Materials
- Water-resistant PU-coated shell over foam and a load-bearing plate, with a silicone anti-slip base
- Care
- Wipe with a damp cloth; vacuum or lint-roll for hair
Will SeatSpan fit my vehicle?
SeatSpan is designed to fit most sedans, SUVs, and trucks. Measure your rear bench and the space toward the front seatbacks, then compare against the 52.3 × 24.6 in platform. If you're close but unsure, contact us before ordering.
What does the hard bottom actually do?
It bridges the open rear footwell with a rigid, reinforced platform, so the entire back row becomes one flat, usable surface instead of a bench with an open gap behind it. Unlike a soft hammock, it holds its shape under real weight.
Is SeatSpan a substitute for a dog restraint?
No. SeatSpan is a comfort and protection layer — it does not secure your dog. Pair it with a properly fitted harness or restraint chosen for your dog and vehicle.
Can passengers ride in the back while it's installed?
SeatSpan is built around dog travel. Remove or fold it back before carrying rear-seat passengers, and never cover a seating position or buckle a passenger needs.
Does it block the seat belts?
SeatSpan includes seat-belt openings, but buckle layouts vary by vehicle. Confirm the openings line up with the restraint setup you plan to use.
How do I clean it?
Wipe the surface with a damp cloth for mud and drool, and use a vacuum or lint roller to lift hair. The PU-coated shell is water-resistant and built for regular cleanup.
What comes with my SeatSpan?
Every order includes one SeatSpan platform with its straps, seat anchors, and storage pouch. Choose the 2-Car Family Bundle above if you need two.
How is shipping and returns handled?
Shipping options and delivery estimates appear at checkout. Current return terms are linked in the footer — review them before ordering.
Buy it like you'd buy from people you know.
Fit without guesswork
Real platform dimensions, a two-minute measuring routine, and an honest answer if it won't work for your vehicle.
Check the fit guideClear offers
SeatSpan at $129.99, or $199.99 for two — straightforward pricing with no invented countdowns.
Choose your optionAsk before ordering
Send your vehicle details and measurements when the fit is close or uncertain.
Contact RoadTuckGive the back seat more room to ride.
Measure your vehicle, choose SeatSpan, and set up the rear cabin around your dog's next trip.
$129.99
Choose your SeatSpanSeatSpan $129.99. Questions first? Contact us.