Frontier Door

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==Description==
One of the strongest doors that can be crafted, the heavy door offers protection against everything but the most powerful of enemy tricks.
Raging hordes have been kept at bay by such doors and with a simple locking mechanism they become proof against incursions into structures.
==Source==
 Created from the following Recipes 
Construction Hammer	Construction Hammer	Construction Hammer	Construction Hammer
Ingredients 	Outcome 	Craft time 	Experiencegained
4 3 	1 	0 s 	356
==Repair==
Repairing requires up to:
* 3 
* 3