2008 Cub 160 frame work

[Ran]

Hi. I’m new to the forum, so if I do things the wrong way, just let me know.
I am looking to find out where I can screw into on the panel just above the back fold down bunk and just under the running lights. I want to put two small brackets that will hold a small lightweight tarp over the bed. The brackets will be on either side of the bunk. I’m hoping to be able to screw into the metal framework. The trailer is a 2008 Aerolite Cub 160

[persistent]

If you can find a stud, you are good to go. However, I cannot guess where it might be. They are rarely placed evenly in modern RV construction.

Many curtains are attached to a mounting strip. The strip is attached to thin paneling with many small screws. You may have a shower curtain in your bath attached in this way.

You may be able to buy the strip with hanger hooks in the strip. See RV hardware websites.

[Ran]

I was looking to attach this on the outside of trailer.

[persistent]

Sorry, I assumed you meant inside.

The same issues apply. Look at how the corners are attached. Many small screws.
Look at how the bed tent is attached, again, many small screws.

There are some companies that make exterior canopies. See slide toppers for motor homes and sun canopies for TT's and Motor Homes.

Why do you want a tarp over the bed tent?