Whats the distance from the cargo bed floor to the top of the roof?

[GunnerD]

I'm looking for a specific dimension on the 2019 Ram 1500, if one of you has a tape measure and a few minutes to spare. What's the distance from the cargo bed floor, to the top of the roof?

I could just subtract the bed floor height from the overall height, but.... While I can find online the overall height for specific 2019 Ram 1500's, nowhere can I find the bed floor height, i.e. the open tailgate height off the ground...

It doesn't need to be precise, within a quarter inch would be great.

Thank you!