- Utility: Required to put a Wooden door
- Requirement: 35 woods
- Destruction Panel (F7): 9 woods
Upgrade 1: Stone
- Utility: Required to put a Wooden door upgraded
- Requirement: 50 stones
- Destruction Panel (F7): 10 woods + 1 Bronze ingots
Upgrade 2: Bronze
- Utility: Required to put a Wooden door upgraded
- Requirement: 5 Woods + 5 Bronze ingots
- Destruction Panel (F7): 9 woods + 3 stones
Upgrade 3: Volcanic
- Utility:
- Requirement:
- Destruction Panel (F7):