How Many C4 for a Sheet Metal Floor?
4 C4
— or 3 from the soft side
4 C4 destroys a Sheet Metal Floor (1,000 HP) from the hard side. That's 8,800 sulfur once you count the gunpowder, and about 40s to place.
What 4 C4 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 Floor
| Method | Qty | Sulfur | Time |
|---|---|---|---|
| Timed Explosive Chargethis pagecheapest | 4 | 8,800 | 40s |
| Explosive 5.56 Ammo | 400 | 10,000 | 2m 0s |
| Satchel Charge | 23 | 11,040 | 3m 4s |
| Rocket | 8 | 11,200 | 40s |
| Propane Explosive Bomb | 13 | 11,700 | 1m 18s |
| High Velocity Rocket | 67 | 13,400 | 13m 24s |
| Beancan Grenade | 112 | 13,440 | 11m 12s |
| F1 Grenade | 993 | 59,580 | 231m 42s |
Other ways to raid a Sheet Metal Floor
C4 against other targets
Frequently Asked Questions
How many C4 for a Sheet Metal Floor in Rust?expand_more
4 C4 to destroy a Sheet Metal Floor from the hard side — that's 8,800 sulfur once you count the full gunpowder chain. From the soft side (inside face) it's 3, because the interior takes more damage per hit.
What's the soft side of a Sheet Metal Floor?expand_more
The soft side is the interior-facing face — the side you see from inside the base. It takes roughly 34% less to break, so 3 C4 instead of 4. If you can get an angle on the inside face through a doorway or window, take it. On a wall, the soft side is the one without the visible seams.
Are C4 the cheapest way to raid a Sheet Metal Floor?expand_more
Yes — on sulfur, C4 are the cheapest method we have data for against a Sheet Metal Floor, at 8,800 sulfur. Worth knowing that cheapest isn't always fastest: placement time and how loud a method is both matter when you're on the clock.
How much sulfur is 4 C4?expand_more
8,800 sulfur, plus 12,000 charcoal and 800 metal fragments. That's the full craft cost including the gunpowder each C4 needs, not just the final recipe.
How long does it take to raid a Sheet Metal Floor with C4?expand_more
About 40s of placement time for 4 — 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
A real player's Rust raid guide: exact sulfur costs per structure, C4 vs rockets vs satchels vs eco raiding, online/offline tactics and defence.
A no-BS Rust base design guide: building tiers, upkeep, tool cupboards, bunkers, airlocks and honeycomb, plus the raid costs that actually matter.
The best Rust scrap farming sources ranked: recycling, road barrels, monument crates, diving crates, cargo and oil rig. Plus a fastest-scrap early routine.