The Double Door Trick
A single barricaded door eats fewer planks than a wall but breaks eventually. Two doors back-to-back — one swinging out, one swinging in — make the second tile untouchable until the first falls.
Setup
- Pick an inside tile that lines up with your hallway.
- Place a door facing out.
- Place a second door immediately behind it, facing in.
- Barricade both with at least 2 planks.
Why it works
Zombie attack is tile-targeted, not building-targeted. The outer door gets focus while the inner one sits at full durability. If a raid breaches the outer door overnight, the inner door buys you another full day to rebuild — and you only need to replace one door, not a whole wall section.
Costs
- Two wood doors: 8 nails + 8 planks.
- Optional metal door for the inner side: 3 metal sheets.