2019 Tundra backseat flat cargo area

I had a 2009 Crewmax Tundra that I could fold the rear seat down to make a large flat area for my dog’s crate. I recently traded the 2009 for a 2019 Crewmax Tundra. Since the 2019’s rear seats fold up, not down like the 2009’s, I don’t have a flat area deep enough to support the crate. Does anyone know about an OEM or aftermarket solution for this? I prefer to crate the dog for her safety & I don’t want her “helping” me drive...

Please see the attached pictures.

 

Welcome. Somewhere around here a few members cut a piece of plywood to fit the area and added feet on the front side to keep it flat/level. This might work for you.

 

Some good ideas in these
https://www.tundras.com/threads/dogs-in-the-back-of-the-crew-max-ideas.32449/
https://www.tundras.com/threads/need-ideas-to-make-rear-floor-flat.27312/