How Many Propane bombs for a Sheet Metal Door?

2 propane bombs
2 propane bombs destroys a Sheet Metal Door (250 HP) from the hard side. That's 1,800 sulfur once you count the gunpowder, and about 12s to place.
Explosive 5.56 Ammo is cheaper for this.
63× Explosive 5.56 Ammo costs 1,575 sulfur against 1,800 for 2 propane bombs — a difference of 225 sulfur per sheet metal door. If you've already got the propane bombs, use them; if you're farming from scratch, don't.
What 2 propane bombs costs
These are full craft costs — the sulfur figure includes everything that goes into the gunpowder, which is why it's bigger than the recipe on the item page suggests. Sulfur is the number that actually matters, because it's the thing you farm.
Every way to break a Sheet Metal Door
| Method | Qty | Sulfur | Time |
|---|---|---|---|
| Explosive 5.56 Ammocheapest | 63 | 1,575 | 19s |
| Propane Explosive Bombthis page | 2 | 1,800 | 12s |
| Satchel Charge | 4 | 1,920 | 32s |
| Beancan Grenade | 18 | 2,160 | 1m 48s |
| Timed Explosive Charge | 1 | 2,200 | 10s |
| High Velocity Rocket | 11 | 2,200 | 2m 12s |
| Rocket | 2 | 2,800 | 10s |
| F1 Grenade | 50 | 3,000 | 11m 40s |
Other ways to raid a Sheet Metal Door
Propane bombs against other targets
Frequently Asked Questions
How many propane bombs for a Sheet Metal Door in Rust?expand_more
2 propane bombs to destroy a Sheet Metal Door from the hard side — that's 1,800 sulfur once you count the full gunpowder chain.
Are propane bombs the cheapest way to raid a Sheet Metal Door?expand_more
No. Explosive 5.56 Ammo is cheaper on sulfur for this target — 63× costs 1,575 sulfur versus 1,800 for 2 propane bombs. That said, cheapest isn't always right: propane bombs may be faster to place or already in your base, and sulfur you've already farmed is a sunk cost.
How much sulfur is 2 propane bombs?expand_more
1,800 sulfur, plus 2,700 charcoal. That's the full craft cost including the gunpowder each propane bomb needs, not just the final recipe.
How long does it take to raid a Sheet Metal Door with propane bombs?expand_more
About 12s of placement time for 2 — that's the deploy time, not the farming. The farming is the real cost, and it's why people check this number before they commit.
Amounts come from the same sourced raid chart as our raid calculator and every /raid/ page, so they can't disagree with each other — verified for the July 2026 wipe. Deployables and external walls are approximate; always test on your own server build. Sulfur includes the full gunpowder chain.
Related guides
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A no-BS Rust base design guide: building tiers, upkeep, tool cupboards, bunkers, airlocks and honeycomb, plus the raid costs that actually matter.
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