How much weight is too much for bed sides/daily driving.

I've been educating myself on Rooftop tents and bed stiffeners and all that. How much weight is too much for the bed sides? How much can i have permanently mounted on there without an issue?

Let's say i have bed stiffeners, and a rack system that weights 75lbs and a RTT that weighs 150lbs, so about 225 total on the bed sides all day every day....should i be worried in the long run?

Thanks!

 

Long run I've seen leaf springs break sooner, like 80,000miles, so upgrading the leaf with an add-a-leaf or air bags will make them last longer.

Or replace the pack with a beefier pack.

It's not a major concern, but the truck will drive better with some form of rear spring enhancement. Lots of reading on here about that.

 

People keep those set ups on there all the time.