I’m on a Starfinder kick, so let’s keep up with this. How about more with the Barricade feat?
BETTER BARRICADES (COMBAT)
You don’t build walls, you built art.
Prerequisites: Barricade, Engineering 3 rank.
Benefit: When you build something with the barricade feat, it is automatically cover. If you build on a space that would normally provide cover, you gain improved cover.