The steel wall is another wall type, and it's main difference compared to the others is the fact that it conducts electricity. It is considered better than the "Wired Wooden Wall", which also conducts electricity, due to it being more expensive for another player to break through.
These are very good for security in households that don't offer much of a payout to other players, as it's not worth using a cutting torch to get through one, especially if it's unclear what is on the other side.
The only downside is that they're 2 times more expensive than a simple wooden wall.
Type: Structural Cost: $20 Destroyed With: Cutting Torch Conducts Electric: Yes