Hard Bottom Back Seat Extender for Dogs – Door Protection, Waterproof, Holds Up to 400 lb
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Details
Hard bottom · Door panel protection · Waterproof
Hard Bottom Back Seat Extender with Door Protection
This hard bottom back seat extender bridges the footwell, so your dog gets a flat, sag-free surface across the whole back seat. The hard bottom has 3 removable, lightweight plastic inserts tested to hold up to 400 lb (181 kg), enough for more than one dog. Soft padding on top turns the back seat into a comfortable dog bed, and integrated door flaps keep your doors free of scratches and drool, even with the doors open or the windows down. It is waterproof, machine washable, and has seat belt openings and corner anchor points that keep it in place.


How it works
Holds up to 400 lb
The extender bridges the gap between the back seat and the front seats. Instead of a footwell to slip into, your dog gets a flat, stable surface and more room to ride.
- Hard bottom: 3 removable plastic inserts, lightweight and tested to hold up to 400 lb.
- More than one dog: the platform can carry several dogs at once.
- More riding space: the whole back seat and footwell become one flat area.
Key features
Door panel protection
Integrated door flaps keep your doors free of scratches and drool. You can open your doors or roll your windows down, and the extender stays in place. The door flap slides into the window seal and rests flat against the door panel, so it protects from the glass down.
- Open or close the doors
- Window up or down
- Adjusts to fit the door


Who it's for
Turns your back seat into a comfortable dog bed
The extender has soft padding on top, so every ride is more comfortable for your dog. It is made for dogs who ride along in cars, SUVs and trucks, whether you have one dog or several.
What's inside
Waterproof, heavy-duty materials, easy cleaning
It shields your vehicle's interior with a waterproof cover that is made to repel water and resist scratches, and it keeps dirt and hair off your seats. When it needs a clean, machine wash it on gentle and hang it to dry.
- Top: waterproof 600D Oxford fabric
- Padding: soft cotton
- Second layer: waterproof 190T Oxford fabric
- Bottom: rubber non-slip backing


Did you know?
Seat belt openings, anchor system and non-slip material
The hard bottom extender gives a secure, non-slide ride. Hook-and-loop openings give access to the seat belts, and corner anchor points let you strap the cover in place to keep your car protected.
- Zip-open console mesh: reach the center console through the cover.
- Seat belt zippers: work with seat belts and child seat anchor systems.
- Corner anchor straps: hold the cover in place.
Size
Will it fit my vehicle?
Standard fits cars, mid-size SUVs and mid-size trucks. XL fits full-size trucks and full-size SUVs. Pick your size and see what it fits.

How to use
Clips on in minutes. No tools needed.
1. Clip the straps
Clip the straps around the front and rear headrests.
2. Set the hard bottom
Set the hard bottom across the footwell.
3. Fit the door flaps
Slide the window inserts into the door seals and hang the door flaps.
Care
Wipe it down, or take it out and wash it
1. Vacuum
Vacuum up hair and grit.
2. Wipe
Wipe off mud and drool with a damp cloth.
3. Wash
For a full reset, machine wash it on a gentle cycle or hose it off.
4. Dry
Air dry only.

Where to use it
A flat, stable platform with the doors covered too
Door flaps that stay on with the doors open, window inserts, corner anchor points, a zip-open console mesh, a storage pocket and plastic inserts in the hard bottom.
Key features
Small details. Big difference.
Every clip, zipper and opening is designed around the way you actually drive.

Questions people ask
Which size do I need?
Standard fits cars, mid-size SUVs and mid-size trucks. XL fits full-size trucks and full-size SUVs. Use the fit guide above to check your vehicle.
How does the door protection install?
The door flap slides into the window seal and rests flat against the panel. It installs in minutes and protects from the glass down.
Is it waterproof and machine washable?
Yes. The waterproof barrier keeps mud, drool and water off the upholstery. When the cover needs a reset, wash it in one cycle and air dry.
Will the cover stay in place while my dog rides?
The fit and the five-point anchor system help keep the cover secure through turns, stops and everyday movement.
Can I still use seat belts, a harness or the console?
Yes. Built-in seat belt openings and console zippers let you buckle in a harness, use a car seat or open the middle for a passenger.
Good to know
- Check your vehicle before you choose a size. Standard does not fit full-size trucks or full-size SUVs. XL does not fit cars, mid-size SUVs or doors that open backwards.
- The 400 lb rating is for the 3 plastic inserts in the hard bottom.
- Built-in seat belt openings let you buckle in a harness.
- Machine wash on a gentle cycle and air dry only.
Specifications
- Type: hard bottom back seat extender with door flaps
- Hard bottom: 3 removable, lightweight plastic inserts, tested to hold up to 400 lb (181 kg)
- Materials: waterproof 600D Oxford fabric, soft cotton padding, waterproof 190T Oxford fabric, rubber non-slip bottom
- Standard size: 52.4 in (133 cm) wide, door flaps 39.4 in (100 cm); for cars, mid-size SUVs and mid-size trucks
- XL size: 61 in (155 cm) wide, door flaps 43.3 in (110 cm); for full-size trucks and full-size SUVs
- Section lengths (both sizes): 16.5 in, 24.8 in and 21.7 in (42 cm, 63 cm and 55 cm)
- Fastening: headrest buckle straps, five-point anchor system with corner anchor straps
- Openings: seat belt openings, zip-open center console mesh
- Door protection: door flaps with window inserts
- Care: machine washable on gentle, air dry only
- Colours: black, gray





