What we use
Sheets of chip board, drill 4 holes equal spaced down each edge. The you can link them together and make self supporting structures and walls by zipping the panels together with zip ties ( wire ties)
Been using this system 3 time a week for over a year now, effective , durable, and nearly infinite configurations.
CAPS Range Officer
Toronto Downtown Age Verifier
If the tongue could cut as the sword does, the dead would be infinite