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Large Hard-Bottom & Non-Slip Dog Car Seat (Back-Seat Extender)

Large Hard-Bottom & Non-Slip Dog Car Seat (Back-Seat Extender)

 5.0 (7 Reviews)
Regular price $179.99
Regular price $179.99 Sale price $229.99
Sold out

Hard Bottom, Non-Slip Base

Stays firmly in place with zero shifting or sliding.

Protects Seats from Dirt & Damage

A durable barrier that shields upholstery from mess and wear.

Foldable Setup

Folds flat in seconds for easy storage and travel.

 
73cm x 56cm x 40cm
73cm x 56cm x 40cm

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Large Hard-Bottom & Non-Slip Dog Car Seat (Back-Seat Extender)

Large Hard-Bottom & Non-Slip Dog Car Seat (Back-Seat Extender)

Regular price $179.99
Regular price $179.99 Sale price $229.99
SAVE 21% Sold out
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I’m really happy with this seat extender. My dog has so much more room in the back seat, and the hard bottom keeps everything stable while we’re driving. It also does a great job keeping hair and dirt off my seats. Setup was quick and it feels very sturdy. Definitely worth it!

-Sarah M

It’s designed for medium-to-large dogs up to about 70 lbs, including breeds like Labradors, Golden Retrievers, Boxers, and Australian Shepherds.

The extender measures 74 × 55 × 54 cm (29.1 × 21.7 × 21.3 in) and is designed for standard back seats, including many cars, SUVs, and trucks.

The hard bottom creates a stable, supportive surface so your dog has more room to sit or lie down without the seat collapsing underneath them.

Yes. The seat extender helps protect your upholstery from dog hair, dirt, scratches, and everyday messes, making cleanup much easier.

Not at all. It’s designed for simple installation without electricity or complicated setup, and it can be folded down when you need to store it or take it on the go.

View full details

Give Your Dog More Room to Ride Comfortably

Turn your back seat into a stable, spacious area where your dog can sit or stretch out comfortably. The hard bottom provides dependable support while the non-slip base helps keep the extender in place throughout the ride.

Protect Your Seats. Enjoy the Ride.

Keep dog hair, dirt, and scratches off your vehicle’s upholstery while giving your dog a more comfortable place to travel. The durable, foldable design makes it easy to set up for road trips and store when you’re done.

Trusted By 10,000+ Happy Pet Owners

POV: your car is now 90% dog hair proof

"I stopped waking up at 6am for this"

"I think my dog loves this more than me"

POV: your car is now 90% dog hair proof

"I stopped waking up at 6am for this"

"I think my dog loves this more than me"

POV: your car is now 90% dog hair proof

"I stopped waking up at 6am for this"

"I think my dog loves this more than me"

POV: your car is now 90% dog hair proof

"I stopped waking up at 6am for this"

"I think my dog loves this more than me"

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Don't Just Take Our Word For It!

Chewy Community Favorite

Recognized by pet parents for comfort, durability, and everyday quality.

GOOD HOUSEKEEPING WINNER

Good Housekeeping Pet Award

A trusted lifestyle recognition for quality pet furniture and accessories.

Vet-Approved Materials

Made with pet-safe, non-toxic materials reviewed for everyday use.

BedBuyer Award Winner

Recognized by pet product experts for comfort and build quality.

PetWellness Foundation

A pet wellness organization focused on comfort, safety, and healthy habits.

Quality You Can Rely On, Pets You Can Trust It With

We test for durability, backed by a 30-Day Money-Back Guarantee, so you can buy with confidence.

Loved by Pet Parents Everywhere

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

This has made road trips with my Golden Retriever so much easier. He has plenty of room to stretch out now and doesn’t slide around as much when I’m driving. It also does a great job keeping his hair and dirt off the seats. Really happy with this purchase!

Ethan M., Denver, CO

I was tired of my dog constantly slipping into the gap between the back seats, especially when we were on longer drives. This extender keeps everything level and gives him a much more comfortable space to lay down. It feels sturdy and was really easy to set up.

Chloe B., Austin, TX

I bought this for my SUV because my dog takes up most of the back seat. It fits really well and gives him more room to move around and lie down comfortably. I also like that it helps protect my seats from dirt, scratches, and all the dog hair. Definitely worth it.

Madison R., Orlando, FL

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

Very convenient and surprisingly sturdy. My dog seems much more comfortable in the back seat now and isn't constantly moving around trying to find a good spot. It was simple to install and I like that I can fold it up when I need the extra space.

Michael R., Mesa, AZ

My dog used to move all over the back seat whenever we went for a drive, which was especially annoying on longer trips. This gives him his own stable area and keeps him from sliding into the footwell. It has made traveling with him much less stressful.

Samantha L., Tampa, FL

I’m really impressed with this for the price. The hard bottom gives my dog a stable place to stand and lie down, and the non-slip base keeps it from moving around too much. It also folds away nicely when I don’t need it. Makes taking my dog in the car much easier.

Jackson T., Cary, NC

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At Tail Unity, we design pet gates, feeders, and accessories that fit seamlessly into homes — no bulky assembly, no compromise on style.

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Contact us at info@tailunity.com with your order number and details of the issue. If the item arrived damaged, defective, or incorrect, return shipping costs will be covered by Tail Unity. Eligible returns will be refunded to your original payment method.

Once your returned item is received and inspected, refunds are issued to your original payment method. Please allow up to 7 business days for the refund to appear, depending on your bank or payment provider. Exchanges are also available — contact our support team to arrange one.

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Free Shipping in the USA

Free Shipping, every single time!

Dedicated Support Team

We care about your experience!

Encrypted Payment Process

Secure Checkout

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