* The spell can be cast on mine entrances to close them, including from outside, similar to a [[shaker orb]].
* Attached mine doors must be destroyed before strong wall can be cast on the entrance.
* Be careful as a reinforced tile can only be removed by the mayor of the deed the tile is within, .(Or any person with permission) or through the use of [[Disintegrate]].
* Use of this spell is tied into the Mining role for deeds.
* [[Libila]] priests may only cast this spell on PvP servers.