Skip to product information
For the dog who needs the whole back seat — and the vehicle that can accommodate it.
The seat extender fills the footwell to create a flat, continuous surface across the entire rear seat area — transforming it from a cramped, angled space into a genuinely comfortable resting area for larger dogs or dogs who simply prefer to stretch out. Built heavy-duty for dogs who test things.
✔ Fills rear footwell to create a flat, level sleeping surface
✔ Heavy-duty construction — supports up to 400 lbs
✔ Waterproof and scratch-resistant surface
✔ Non-slip backing
✔ Adjustable fit for most rear seat configurations
✔ Folds flat for storage
Heavy Duty Dog Car Seat Extender
$119.99
Sale price
$119.99
Regular price