The Rust GuideTHE RUST GUIDE
Walls·1,000 HP·Has a soft side

Sheet Metal Wall

Same HP as floors, foundations, and other metal pieces.
1
1
Cheapest way in
×4
Timed Explosive Charge275 HP per hit
Sulfur8,800sulfur ore
Time14sto get in
BenchWB3to craft
275 HP per hit · 4 hits on 1,000 HP−100 HP overkill
Save 450 sulfurvsTimed Explosive Charge3 Timed Explosive Chargethen70 Explosive 5.56 Rifle Ammofor the last 175 HP8,350

Compare tools

12 tools · full bar = 4× the best
Sort
ToolBench
Timed Explosive ChargeWorkbench 3WinnerCheapest sulfurFastest×48,800 Best14sBestWB3
Explosive 5.56 Rifle AmmoSemi-Automatic Rifle · Workbench 3×3999,975 +13%2m 55s×12WB3
Mortar ShellMortar · Workbench 2×3410,200 +16%1m 28s×6.2WB2
Satchel ChargeWorkbench 1 · ~29 with duds×2311,040 +25%42s×3WB1
RocketWorkbench 3×811,200 +27%43s×3WB3
Propane Explosive BombPlaced · Workbench 2×1311,700 +33%2m 20s×9.9WB2
High Velocity RocketWorkbench 2×6713,400 +52%6m 47s×29WB2
Beancan GrenadeStuck (right click) · Workbench 1 · ~132 with duds×11213,440 +53%7m 56s×34WB1
Beancan GrenadeThrown · Workbench 1 · ~155 with duds×13115,720 +79%9m 17s×39WB1
F1 GrenadeStuck (right click) · Workbench 2×99359,580 ×6.849m 39s×210WB2
F1 GrenadeThrown · Workbench 2×9,639578,340 ×668h 1m 57s×2,036WB2
40mm HE GrenadeMultiple Grenade Launcher · Found in lootLoot only×57Loot onlynone1m 17s×5.4Loot

Why ×4?

How the game gets the number
DamageBaseArmourOuter shellDealt
Explosion550× 0.5 50% blockedskipped275
Per hit275
1,000 HP÷275 per hit=3.64→ round up →×4
  • C4 sticks to the target, so the building's outer shell is skipped.
  • Fuse 10s, about 1.4s to place each.

Raw components

for 4× Timed Explosive Charge

Intermediates flattened into raw components (gunpowder, explosives, low grade).