Why is it sometimes impossible to shut the trailer doors on sloped ground?

Wasn’t

 

It isn't just on a slope.

I have had times that I could not shut the trailer doors with the tandems to the rear, or to the front.
Sometimes sliding the tandems is needed to straighten things out.

 

Because if it doesn’t flex then every rivet, bolt, and weld on the trailer would eventually break. And also if it was built heavy enough and stuff enough to not flex it would be so heavy that you’d never be able to haul a decent payload.

 

Yes it does.

 

Just 3 mother in laws was the rumor going around last time I heard.

 

Duh,
Because the ground is uneven .

you’ve never driven behind an trailer and seen the gap between the bottom of the door and the trailer constantly change ?

 

How does a trailer even brag, let alone flex? Not a SINGLE question has been answered yet.

 

Are you really that ignorant, or are you just (still?) being a troll?

 

The man has questions. He needs answers.

 

Perhaps a bit of both.