Black Ice-Reinforced Wooden Doorframe

Description
Every structure that has ever fallen to an enemy has been breached somewhere. And the breach point, more often than not, is the door. A door is only as strong as the place where it is anchored and many a would-be warlord has come to grief when their solidly constructed door was torn off at the anchor point. The difference between a king and a pauper might just be the entrance to his kingdom. Black Ice-Reinforced Wood is one of the hardest building materials that can be created in the Exiled Lands. Weapons barely chip it and even explosive powder is not enough to weaken it in a single blow. Siege weapons or divine intervention are really the only way to bring down walls this strong.

Repair
Repairing  requires up to:
 * 3
 * 2