Revisions log for question
Is it possible to make a frame of 20x20 angle with a thickness of 2 mm for a fence made of corrugated board?

I have a plot of land, 100 meters around the band screed, from which the poles stick out at 120 cm at a distance of 3 meters from each other. To the posts I want to weld angles 2 mm 20x20, from them to do the same crossbar, so that it was possible to insert the profiled sheet 2 m (to the top and bottom of the sheet screwed into the corner (like a frame in the picture)) and another crossbar in the center. Will it work or will the angle 20x20 be weak?

There are severe financial constraints, so the desire to make the cheapest possible, even to the detriment of beauty.

• fence
• corrugated board