RoadGuard™ Dog Seat Extender

RoadGuard™ Dog Seat Extender

Regular price $139.99
Regular price $139.99 Sale price $289.99
SAVE 51% Sold out

A stable floor means a calmer dog.

✓ No sagging, no sliding into the footwell | solid footing on every turn
✓ Contains the mess before it reaches your seats, doors and console
✓ Reinforced PP platform holds up to 440 lb | big dogs, two dogs, muddy dogs
✓ Up to 40% more usable back seat space
✓ Includes an adjustable dog seatbelt, no separate purchase needed
✓ Covered by a 1 year warranty as standard
✓ Free tracked shipping | 3 to 7 day delivery

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Golden doodle sitting on a black quilted RoadGuard hard bottom dog car seat cover installed across a car back seat

RoadGuard™ Dog Seat Extender

Regular price $139.99
Regular price $139.99 Sale price $289.99
SAVE 51% Sold out

RoadGuard™ is designed to fit most sedans, SUVs and trucks with compatible front and rear headrests.

Product dimensions:

Seat platform: 131 cm / 51.57 in wide x 69 cm / 27.16 in deep

Seat back panel height: 57 cm / 22.44 in

Side panel width: 40 cm / 15.74 in

Unfolded flat: 205.5 x 164 cm / 80.9 x 64.56 in

Folded for storage: 70 x 47 x 7 cm / 27.55 x 18.5 x 2.75 in

For the best fit, measure your back seat before ordering. Vehicle interiors vary, so unusually narrow, wide or custom rear seating may not be compatible.

RoadGuard™ is built from waterproof 600D Oxford fabric over a five-part construction: quilted Oxford top, soft cotton padding, three rigid PP support panels that insert into the base and zip closed, a second cotton layer, and a nonslip textured base.

For routine cleaning:

Vacuum loose fur and debris, or lift the cover out and shake it off

Wipe the surface clean with a damp cloth

For heavier mud, rinse with a hose nozzle and air-dry completely before reinstalling

Avoid bleach, harsh chemicals and high heat. The three support panels unzip out of the base for cleaning or storage, remove them first if you ever need to deep clean the cover.

RoadGuard™ installs in minutes using adjustable headrest straps, built-in seat anchors, and side-panel supports.

To install:

  1. Unfold the cover across the rear seat.
  2. Attach the rear straps around the back headrests.
  3. Secure the front straps around the front headrests.
  4. Push the seat anchors between the seat cushions.
  5. Attach the side panels and tighten the straps until the platform sits flat and secure.

The foldable design allows one side to be lowered when a rear-seat passenger needs the seat. Built-in buckle openings provide access to the vehicle’s seatbelts while the remaining section stays protected.

Before driving, make sure every strap and anchor is securely fastened and the hard-bottom platform is fully unfolded and level.

Each RoadGuard™ package includes:

1 × RoadGuard™ Dog Seat Extender
3 × Removable rigid base panels (insert into the base and zip closed)
1 × Adjustable dog seatbelt (clips to a harness — for containment, not a crash-tested restraint)
2 × Length-adjustable door support straps

Adjustable headrest straps with snap buckles

Built-in rigid seat anchors

Zippered mesh viewing window

2 × Side Storage Pockets

The door support straps keep the protective side panels upright and securely positioned. The mesh window lets your dog see you on longer drives and zips closed when you want the back seat fully enclosed.

Orders are processed within 1–3 business days and estimated delivery is 3–7 business days after processing.

If you order the Comfort Pad with RoadGuard™, the two may arrive in separate packages with their own tracking numbers.

Free tracked shipping is available to supported destinations. Eligible returns may be requested within 30 days of delivery.

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No More Slipping Into the Footwell

Soft hammocks sag in the middle, so your dog braces on every corner and ends up wedged in the footwell. RoadGuard™ bridges that gap with a rigid, level platform, solid footing the whole way, and an easy step up for older or larger dogs who can't jump.

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Designed to Fit Most Vehicles

Adjustable straps fit most cars, SUVs and trucks with compatible headrests. Measure your back seat first, see Fit & Dimensions.

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Quick, Secure Installation

Attach the adjustable headrest straps, insert the seat anchors, secure the side panels, and you are ready to go.

A black quilted car cargo liner set installed across the rear seats of a tan vehicle, with orange accent clips and side mesh pockets, shown in a real car interior with a suburban street visible through the windows.

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Cushioned Over a Rigid Core

Soft cotton paddingabove and below three rigid panels that zip into the base, under quilted 600D Oxford. A firm, level surface with a soft finish, not a bare board.

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Easy to Clean

Vacuum away fur, shake out loose debris, or wipe the waterproof surface clean with a damp cloth.

Adventure-Ready Protection

  • Stacked cross-section diagram of a waterproof car seat liner made from 600D Oxford Cloth, with labeled layers including Soft Cotton, PP Plate Sheet, Soft Cotton, and Non-Slip Bottom on a light beige background.
  • A black pet car seat cover shown on a beige product-detail graphic with feature callouts and circular inset photos. The cover is labeled with features such as adjustable seat anchors, length adjustable belts, snap buckles, sturdy secure straps, anti-slip bottom, premium smooth zippers, and waterproof fabric.
  • RoadGuard dog seat extender dimensions diagram showing a 51.57 inch wide by 27.16 inch deep hard bottom platform, fits sedans, SUVs, Jeeps and trucks
  • A portable collapsible camping bed or storage bag shown folded inside the open trunk of a dark SUV, with marketing text and icons on a beige outdoor-themed background. The text highlights foldable, compact, easy to carry, and carry handles features.

    More Than a Basic Seat Cover

    RoadGuard™ delivers the protection you expect from a dog seat cover, plus a reinforced hard bottom that creates more room and support for your dog.

      Hammock Style Covers
    Waterproof seat protection
    Extended hard-bottom platform
    Supports up to 440 lb
    Up to 40% more usable space
    Protective door side panels

    Questions About RoadGuard™

    Yes. RoadGuard™ uses three rigid PP support panels that insert into the base and zip closed, creating a flat, stable platform over the rear footwell, not a hammock that sags in the middle. Your dog gets solid footing instead of a sling that shifts under them on every turn.

    Yes. One side of RoadGuard™ can be folded down to expose a rear passenger seat while the remaining section stays protected for your dog.

    Yes, provided the dogs fit comfortably and their combined weight remains below the stated 440 lb capacity.

    Yes. The top surface, the side panels and the extended footwell platform are all waterproof, so drool, wet paws, spills and accidents sit on top of the cover instead of soaking into your seats. Wipe the surface down with a damp cloth and the mess is gone.

    The platform is rigid underneath and cushioned on top. Soft cotton padding above and below the three zip-in support panels, under quilted 600D Oxford fabric, gives a level surface with a soft finish rather than the bare board some hard-bottom covers use. Older dogs and dogs that like to burrow often settle faster with a familiar blanket laid over it, or with the RoadGuard™ Comfort Pad.

    Yes. RoadGuard™ has built-in buckle openings so the rear seatbelts stay accessible with the cover installed. If you are also fitting a child seat, use the fold-down side so the belt path and anchor points stay clear.

    Yes. Each package includes one adjustable dog seatbelt that clips to your dog's harness and to the vehicle's seatbelt buckle. It is a containment and convenience feature, not a crash tested restraint. For travel safety, pair it with a properly fitted harness and a crash tested restraint, and never clip anything to a collar.

    No, and we would be cautious of any seat cover that claims to be one. RoadGuard™ is containment and interior protection: it keeps your dog on the back seat and the mess off your upholstery. For travel safety, use a properly fitted harness with a crash-tested restraint. Never clip anything to a collar.

    Yes. Every RoadGuard™ comes with a 1 year warranty as standard. If it develops a fault in normal use within that year, we repair or replace it at no cost. That covers zips, buckles and snap clips that fail, seams that split, support panels that crack or warp, and waterproof coating that peels.

    Chewing, scratching or tearing by your dog is not covered, and neither is accident damage. You can extend the cover to three years at checkout. Returns are separate: you have 30 days from delivery either way.

    Yes. A zippered mesh window in the seat back panel lets your dog see you and lets you check on them, which takes the edge off separation anxiety on longer drives. Zip it closed when you want the back seat fully enclosed. Two storage pockets on the side panels hold treats, leads and waste bags.

    • 5 stars: 47 (87%)
    • 4 stars: 4 (7%)
    • 3 stars: 1 (2%)
    • 2 stars: 2 (4%)
    • 1 star: 0 (0%)
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    SnoFall

    Wow! This Mutrek Back Seat Extender for dogs/pets is a product I never knew I (& my 5 dogs) NEEDED! It’s extremely durable, which is important because all of my dogs are extremely active/hyper, love to dig their nails into anything, & seem to be always on the move lol. This piece fit perfectly into the backseat of my Jeep Wrangler. I had absolutely no issues laying it out & securing it for safety. It has comfortable padding for my pups, which we all appreciate. It’s a solid “hard” bottom, but the padding allows my fur babies to stay calm & supported throughout our road adventures. One of my pups did have a small accident on this seat extender, but thankfully it was easy to clean off of this material quickly so that we could continue on! As mentioned, I have 5 dogs & this back seat extender can hold up to 440 lbs. That’s HUGE when it comes to a car product like this for your pets. We buckle them in & now know they’re safe & sound on top of this seat extender. I couldn’t be more thankful & I’m sure my pups are too! Highly recommend!

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    Erika K.

    This seat cover is life changing. I bought a new car and was dreading putting my dogs in the car. This was the perfect solution. They can't slober on anything, they are comfy with extra room. It allows the AC to flow to them. Absolutely perfect.

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    Anna

    I love this thing. The supported bottom is solid (held my 195# body w/o issue). Now, the only thing is that because it's solid, it's not very comfortable. Initially, my dogs wouldn't lay down on it, but with a couple blankets or a bed, it's fine for them. Someone could make a lot of money creating a cushion that's exactly the same size for them 🤣The connections to the seat that holds it up seems strong, it was easy to install, and it's super easy to use 💪 folds easily if you need 1 of the seats for a person, it looks professional, and fits my 2013 Lexus RX350 perfectly 👍

    Anna, the 195 lb test made our day. You're right that it's firm, and that's the cost of not sagging into the footwell. You also described a product we had already built: the RoadGuard™ Comfort Pad is the plush layer made for this platform. It covers the seat section, though about 3 in of the front extension stays bare. Email support@muttrek.com and we will help you get one.

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    lee g.

    The dogs loves it! So much more space for them in the backseat, high quality materials and looks good as well. highly recommended

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    Lorraine K.

    I like the look and easy to put up and take down to clean

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    concrete r.

    Really niceMy dog is 3ft tall and 105 lbs, this cover seat is perfect for him to run from window to window in my sedan.

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    Crystal C.

    Very easy to put together and up. I bought different safety belts for it as I wanted something better. It came with 1 but I knew already what I wanted so I ordered different ones so what is pictured is not what it comes with (safety belts) however my dogs are able to lay out without falling off, it’s easier on their joints and bones! They absolutely love it and fall asleep so much better than without it as we drive ALOT and I take them whenever I am leaving for long drives. It has places to lock in through the seat and around headrests. It truly adds length to the seat, the quality is great. Worth the small investment! My dogs are comfy and secure and I’m a happy dog momma !

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    Bill B.

    Pros: Our dogs, Swedish Vallhund & Basset Hound love having the entire back seat to stretch out, roll over, etc.The vented section in the front, fits just right over the AC vents, allows the dogs to get fresh air, smell the 'traffic, farms, etc'.First time out, one of the dogs got car sick... what a mess! But, it washed right off, what a relief.Goes on easy and fast, plenty firm and folds up when it's space is needed for something/someone else.Dogs each have a padded bed - but the way they're stretching all over the place, a 'doggie mattress' to cover the whole thing, is probably the way we'll go.

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    Sophia P.

    Keeps all the dogs off of my seats

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    WandaM.

    I'll try to get a picture next time I use this but let me just say... BUY IT!!!! My two sons have big dogs and I just got a new vehicle with leather seats and didn't want them on them so I just happened to see this and it was cheap so I ordered it to see if it'll work and we used it today to take one to their vet appointment. My son and I both set it up but it's so easy that one person can set it up and take it down with no problems!! It covered the whole back area completely, the sides zip close and latch to the grip hanger thing. It is amazing!!! I don't mind having to take them anymore in my vehicle!! It's well made, seems like it'll hold up so if you want to keep the dogs off your seats in the back... Buy this!!!!

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    Map1019

    It works very well. I am a Porter for an animal groomer and pick up dogs daily, and it helps to save the wear and tear on the seats.

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    Kylie M.

    This cover works great! I have an 11 week old puppy and she does so well in the car now. I also love that the strap actually buckles into the seatbelt clip to keep her safe. Highly recommend!

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    D. W.

    Assembled and installed in just a few minutes. This is a nice upgrade from the dog seat cover that does not have the seat panels. There are 6 plastic corrugated panels to install. These are sturdy enough to support your dogs and help provide more space in the back for your dogs. The walls are higher than my previous back seat cover.Dogs love it as they were jumping in the car as I had it installed halfway.This was installed in a 2022 GMC Terrain.

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    Lisa

    Wow! This is great! Good quality and looks really nice. My pets love it. Worth every cent way better than the other one I bought that cost 200.00 this is a steal.

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    Sherry S.

    We love this product! We have 4 herding dogs, they travel with us everywhere and shed like crazy. This cover holds in all the hair while giving our crazy crew plenty of room to stretch out. The base stretches from the rear of the front seat to the back seat, giving them more room than if they were just hanging out in the back. It also has a great texture to give them more comfort and more traction as our seats are leather, so they don’t slide. It’s strong durable and holds up to the high traffic. I really appreciate that the sides zip up and attach to the panel handle, keeping them from rushing me when I open the door. We will absolutely be purchasing another for our other vehicle. Thank you for making our travel easier!

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    Maria

    Very heavy duty material. My dog is very happy with this when ridding around.

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    HSatlof

    fits beautifully, really nice to have our Hound Dog in the backseat!

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    EDWARD S.

    Great for containing our dog in back seat. Keeps upholstery clean and dry . Dog loves it. (Rusty Approved)

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    greyhoundmom

    liked it so much in my husband's corolla, I bought one for my corolla cross suv. It fits and it stays in place. idiot proof to put together. If you do have a person that needs to sit in the back, it has a quick release buckle over the rear headrests and folds up fairly flat against the backs of the front seats. Haven't used the side door cover but it tucked easily into the seat and hasn't moved.

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    shortyg

    I bought this seat cover thinking that I could fold it in half and just use one side if I needed to, and leave the other side of the seat open for a passenger, but there are no openings for the buckles in the seats to come through. So I had to return it because I intended to use it underneath my car seat. However, for people looking for a protective Car seat cover where their dogs can roam freely. This is great material and good quality and does a good job covering the seats.

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    David W.

    Seems to fit my Kia Sorento with captain chairs just fine. Our 90 lb Goldendoddle likes it.

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    Gayle E.

    Bought this for my 2026 Toyota RAV4. With my old RAV, I always kept the back seats down for my German shepherd and other cargo. This seat cover went in easily and creates a "crate" for my dog. Items can still be easily put on the floor under the seat. It looks good, and it is a practical way to protect the back seats from damage and provide a comfortable, safe area for the dog.

    D
    DeadSetOnDreams

    Off the bat, I was nervous about how this would fit in my tiny VW Beetle, but I was able to make it work!I got this because we now have 2 dogs and a cat. The dogs will be the ones using this, of course, while the cat uses her carrier in the front passenger seat when we have to take them to the vet. And I didn't mind that the size of the seat extender was bigger, because we can use it in both vehicles, not just in my tiny Beetle.Our previous issue was the space/ the drop from the seat to the floor, as well as the dogs trying to run out of the vehicle before we had a chance to safely get them out, and this will solve both of those issues already.The extender came perfectly packaged, it is super sturdy and incredibly easy to set up/ figure out, even if you don't look at their included instructions. It definitely seems like it is a nice sturdy product, clearly water-resistant, and the zipper quality is nice as well. I even ordered a pet bed to add to it, but even without that, it seems that they would be comfortable enough while using it.The bottom of the extender comes with sturdy load-bearing boards that you add, 3 for each half of it, so there are 6 total. The trick to getting it to fit in a tiny Beetle is to only use half of the extenders' bottom. So instead of using 3 boards per side, I doubled it up and used all 6 on the front half of the extender (2 boards per section, which was still able to zip up perfectly afterward).You can tell which half is in the front half because it's the same side as the mesh panel that allows them to see into the front seat. That is the portion that they would fall down into anyway, so it works out perfectly. I also didn't want the extra panels to get lost, so the fact that they could still fit was brilliant!Everything else still works perfectly fit-wise, the straps go over the seats and can be adjusted. Each half has a long zipper to install the boards. So with 1 zipper you can access 3 board placement slots, and another long zipper for the other 3.Then, of course, if we need to switch to the other vehicle, I can easily take the straps off the headrests and move it over. I only got the 1 extender to test it, and they usually ride in the Beetle 99% of the time anyway. The owner of the other vehicle has pet allergies, so we try not to have them in there/ if we do, we have to deep clean it afterward.Anyway, I'm incredibly happy with this purchase, even though I was nervous about the size at the beginning. Luckily, it worked out perfectly in the end!

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    Carliexo

    This is excellent! The quality is high, as the material is very thick and the seams, especially on the corners, are sewn well. Plus, the quilted pattern is not just attractive, it also means extra strength in the body of the material, making it more difficult for the dog's nails to scratch or tear through.I have a Jeep, and this covered my entire back seat amply and without gaps, draping over the edges and securing easily, with material to spare for tucking to keep the cover in place. But it can also be extended to hook over the front seats, made steady by placing the hard padding beneath to create a sort of backseat playpen. It works equally well either way. I must say, though, the bottom padding is substantial, so I would not feel nervous that it would collapse under the weight of my dog, especially with the thick, adjustable straps. It is an excellent way, in fact, to keep the dog from sliding onto the floor during travel.This was easy to clean as well. It was waterproof for sure, because as I sprayed it with the hose, the water ran right off. But so did the dirt. Another feature I appreciated were the big storage pockets. I stuffed some treats in one and bandages in another on our trip to the vet. This extender also folded up easily for storage, and the fold lines made it clear how to wrap it back into its original condition in a snap. Both the pockets and the packability make this super convenient!It was also pet friendly, which to me is the most important. My dog did not mind riding on it and did not fuss about the fabric or straps. He just lay in my lap and enjoyed the ride. One more thing I appreciated is that while this is not a use mentioned in the description, we were able to use this seat cover as a makeshift stretcher to efficiently slide my pup out of the car and carry him into the office. It was so sturdy that he wasn't even scared as we did this. All these features made this back seat extender even more of a win for me!It's definitely worth the price and has become a staple feature in my car.

    R
    Rampage

    Yes, I watched the videos before I bought it a week ago. Saw it about a week before and ordered it then, saved $5-10.Got this for a Rav4. Wanted the light color to lighten the inside of the dark car.Went together VERY EASILY, SUPER SIMPLE. Will be easy to take apart and wash when needed.Picked up this baby at the vet the day I put the cover in the car.So nice not to worry about her falling between the back & front seats!I work with shelter pups and you never know what's gonna happen in the car. I looped the side support strap around the handle on one side, but just half unzipped the corners on the driver's side where I placed her in the back, then zipped them back up.It wouldn't stop a determined dog, but good to have that little mesh-barrier in front of the opening at the armrest.Also included a tether with a metal end to snap in the seat belt buckle and a plastic clip for a harness. Only a collar, no harness on this baby so I wouldn't want to strangle her in an accident, however, i might get a harness and a tether with a heavier clip to use with my owns dogs as we are usually on the interstate when they're riding.

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    Ruth

    This is my third attempt at buying this no other seller was able to actually deliver the product, it never made it to shipped. I have waited months to finally get this. This purchase came within a couple days. Bought the bed separately - mostly fits really well. I have a Jeep Cherokee. Bed might be a couple inches too long. Excited to finally try this with my dog so he doesn’t have to be cramped in the back the net might be more useful for smaller dogs I have a GP AS mix who will laugh at this net lol. Overall super happy I have a comfy looking spot in my car for my sweet doggo with a slight attitude.

    T
    Toni

    This dog car seat cover exceeded my expectations! It was incredibly easy to assemble and install in my vehicle, and you can tell right away that it's very well made. The hard-bottom design gives my dogs plenty of room to move around comfortably, especially on long trips.One of my favorite features is how well it protects my vehicle. It keeps my dogs from scratching my leatherette seats, doors, and tinted windows, and the hammock design prevents them from trying to jump into the front seat.We're currently using it on a 12-hour road trip, and it has been fantastic. It's sturdy, comfortable for the dogs, and makes getting them in and out of the car quick and easy. If you're looking for a durable, high-quality back seat cover that offers excellent protection and extra space for your pets, I highly recommend this one!