Looking for a backseat extender that can be split for partial use

OK … I have a 2021 ORP and I need a back seat extender for the back seat so that my old wobbly Golden Retriever won’t fall into the footwell. She sits on the passenger side and needs the backseat up and enters from the rear hatch so I cannot put both seats down. Thus I need the 60/40 split for the extender. I have been able to find a couple but they are 40/60 splits and after some discussions, they cannot just be turned over and used the opposite way. Does anyone have any suggestions?

Many thanks

 

If I understand this correctly, you have the driver's side rear seat folded down and the dog climbs in the open hatch and then navigates over the folded down driver's seat and sits in the upright rear passenger side seat? And you need a filler for the passenger side rear footwell so he doesn't slip into that void area?

I think I'd try to fill the footwell with a correctly sized box rather than buying a dedicated product.

I can't really visually estimate how well it would fit with the seat bottom installed but I have previously used a 8 gallon Action Packer in the footwells and it's near a perfect fit (with the seat bottom removed). I think it would be pretty close with the seat bottom in. You could add skateboard tape or similar to the top to aid in the dog not slipping on it.

These are the best pics I have on file to show the fit of the 8 g AP. Again this is with the seat bottom unbolted and removed and the seat back folded forward.

 

We use one of the Duluth Trading Company options and love it. I think this one fits your use case.