Rust Stone Wall (Stone Building Tier)
A Stone wall has 500 HP and decays in 5 hours without upkeep from a tool cupboard. Breaking one takes 2 C4 or 4 rockets; the cheapest way is 2× Timed Explosive Charge (4,400 sulfur), the same from either side.
Decay & Upkeep
Without a tool cupboard supplying upkeep, a Stone structure begins to decay and is destroyed after roughly 5 hours. Keep resources in a nearby tool cupboard to pay upkeep and stop decay entirely.
Build Cost & Upkeep
Upgrading a wall or foundation to Stone costs 300 Stones. Daily upkeep is a share of that cost set by the size of the base: 10% for the first 15 blocks, 15% for the next 50, 20% for the next 125 and 33.3% for every block after that. The upkeep calculator works it out for a whole base.
Other shapes cost a fraction of that, rounded up. Every block is placed as twig first, which costs wood whatever it is upgraded to.
| Block | Placed as twig | Upgrade to Stone |
|---|---|---|
| foundation | 50 wood | 300 Stones |
| triangle foundation | 25 wood | 150 Stones |
| floor | 25 wood | 150 Stones |
| triangle floor | 13 wood | 75 Stones |
| floor frame | 25 wood | 150 Stones |
| triangle floor frame | 13 wood | 75 Stones |
| wall | 50 wood | 300 Stones |
| half wall | 50 wood | 300 Stones |
| low wall | 25 wood | 150 Stones |
| doorway | 35 wood | 210 Stones |
| window | 35 wood | 210 Stones |
| wall frame | 25 wood | 150 Stones |
| roof | 25 wood | 150 Stones |
| triangle roof | 25 wood | 150 Stones |
| L-shaped stairs | 50 wood | 300 Stones |
| U-shaped stairs | 50 wood | 300 Stones |
| spiral stairs | 50 wood | 300 Stones |
| triangle spiral stairs | 50 wood | 300 Stones |
| ramp | 25 wood | 150 Stones |
From our dump of the game's building blocks, build 2634.289.1.
What It Takes to Break a Stone Wall
| Method | Amount | Sulfur |
|---|---|---|
| Timed Explosive Charge | ×2 | 4,400cheapest |
| Explosive 5.56 Ammo | ×185 | 4,625 |
| Satchel Charge | ×10 | 4,800 |
| Rocket | ×4 | 5,600 |
| Propane Explosive Bomb | ×7 | 6,300 |
| High Velocity Rocket | ×32 | 6,400 |
| Beancan Grenade | ×64 | 7,680 |
| F1 Grenade | ×872 | 52,320 |
One wall, cheapest first, and the same from either side: explosives ignore a wall's soft side in the game (it only matters for melee and bullets). Same data as the raid calculator.