1. It's probably pretty small gauge (24?), limiting what it can be used for.
2. If you try to unfold it, the corners will be a bear to flatten and
will never be truly flat.
3. It's galvanized, which doesn't like to be welded.

I would cut a couple/three, 24 x 36 pieces and scrap the rest. They are
taking WAY too much space (12 x 2 x 3 x 1 = 72 cu ft)!

Bob