The core of a good base, this is where you craft your weapons. It can be built outside too, although that will leave it vulnerable to damage in harsh weather.
In game this structure is named "Weapon Smith" but for the purposes of this wiki we will refer it to as the "Weapon Smithing Bench" to avoid confusion with the Weapon Smith skill.
Each level of this buildings allows crafting of higher quality weapons at the expense of more valuable raw materials. As input the first level uses iron plates, the second level uses iron plates and fabric, and the third level uses steel bars and fabric. Each level takes progressively more raw materials to build and requires more research for its construction.