Have you ever built a dog platform?
 

Has anyone here ever built a dog platform like this?

https://www.torquenews.com/6626/man-...ome-more-space

https://cimg7.ibsrv.net/gimg/www.f15...a84b24ff78.jpg

This is on a Toyota Tacoma, but is it possible to build something like this in a F150 truck? If yes any pics?

I have a German Shepherd and a Doberman and use this:
It's not a platform but it holds two hundred pounds worth of dog. :)

I have in the past, but we are talking 3 trucks and 1 dog ago, so I don't have any photos any more. It's simple to do with basic tools. Just have to get creative and make sure to build it with strong materials. I used 3/4" plywood and made it in 2 halves to make it easier putting it in and out since mine was not permanent like the one you posted. I just used a dog bed to put over top of it that he laid in. Now I don't have to worry about it. I love the flat floor in the new F-150s!