If your dog slides into the rear footwell every time you brake, you're not imagining it: a back seat is a narrow, sloped, slippery shelf with a hole in front of it. Dogs pace, scramble and end up wedged between the seats. Here's how to fix the space, and the one thing an extender can't do for you.
Why dogs end up in the footwell
- The seat is too shallow for a medium or large dog to lie flat, so they hang half off it.
- Seat cushions slope backward and the fabric is slick, so paws slide on turns and stops.
- The footwell is an open gap. Once a paw goes in, the rest of the dog follows.
- Restless dogs move toward you. The footwell is the path to the front seats.
Your options, compared
| Option | How it works | Good for | Watch out for |
|---|---|---|---|
| Hammock seat cover | Fabric slung between the front and rear headrests | Keeping hair off seats, blocking the gap to the front | Sags under weight, so dogs still sink toward the footwell |
| Hard-bottom back seat extender | A stiff board under a cover bridges the footwell | A flat, firm platform the dog can lie down on | Must match your seat width; rear seats can't carry passengers while it's in |
| Inflatable or foam platform | Fills the footwell from below | Cars where a board won't fit | Punctures, bulk, and it can shift |
| Crate in the cargo area | Dog rides in a secured crate | The most contained option, especially for SUVs | Space, cost, and the crate itself must be secured |
Why a hard bottom matters
A hammock solves the hair problem but not the footwell problem: the fabric dips exactly where the gap is. A hard-bottom extender puts a rigid board across that gap, so the back seat and footwell become one flat surface. For most medium and large dogs that's the difference between perching and lying down.
Our Back Seat Extender for Dogs uses a honeycomb board under a waterproof Oxford-fabric cover, with a mesh window and storage pockets. The board is 54 × 25.6 in, so check your car first with our back seat extender fit guide.
The part an extender can't do: restraint
An extender gives your dog a better place to ride. It is not a crash restraint, and no seat cover is. In a hard stop, an unrestrained dog keeps moving.
- Use a crash-tested harness, crate or carrier. The Center for Pet Safety tests these and publishes certified products.
- Skip long extension tethers and zip lines. The same group warns they give dogs too much movement in a sudden stop or crash.
- Keep dogs in the back seat, away from front airbags.
Getting a restless dog to settle
- Start with short drives to somewhere good, like a park, so the car predicts fun.
- Put a familiar blanket or bed on the platform so it smells like home.
- Exercise before long trips. A tired dog lies down.
- Keep the temperature comfortable, and never leave your dog in a parked car.
Then deal with the hair
A covered platform keeps most hair off the seats, but some always ends up in the carpet and on the front seats. Our guide on how to get dog hair out of your car covers that. The Dog Ride Kit pairs the extender with a rubber pet hair detailer for exactly that job.
More for riding with dogs: Dog rides.