Rust Raid Calculator: Cheapest Explosives per Wall & Door

How the raid calculator works

Every wall, door and deployable in Rust takes a fixed number of each explosive to break, and every explosive costs a fixed amount of sulfur to craft. Put those two tables together and a raid becomes arithmetic. For each piece you add, the calculator looks up the four options (C4, rockets, satchel charges and explosive 5.56 ammo), multiplies by the sulfur behind each one and keeps the cheapest. The big number at the top is the total sulfur for the whole path if you always take the cheapest option on every piece.

The "Only using" table is for the moments when you already have a box of rockets and no intention of crafting anything else. It shows what the same raid costs if you bring one type of explosive for everything, so you can compare "cheapest possible" against "what I actually have".

Sulfur per explosive, crafted from scratch at a workbench: a Timed Explosive Charge is 2,200, a rocket 1,400, a satchel charge 480 and a single explosive 5.56 round 25. Those figures include the sulfur inside the gunpowder and the Explosives component, which is where most of a rocket's cost hides.

Reading the result

The chips under the total tell you what to craft: "2× C4, 63× Explo ammo" means the cheapest route through your list is two charges and sixty-three rounds. The "Crafting list" button carries that exact mix over to the crafting calculator, which turns it into raw sulfur, charcoal, metal fragments, low grade fuel and tech trash, in the order you need to craft them.

"Copy link" puts your whole selection in the URL. Paste it in your group's Discord and everyone sees the same list, including the person who is going to farm the sulfur.

One thing the number does not show is time. Explosive ammo is the cheapest option on nearly every door, but 150 rounds into a garage door takes a while and the sound carries. C4 and rockets are faster and louder still. If the base has people online, the fastest option is often the cheapest one in practice, because a raid that gets countered costs you the kit as well.

Hard side, soft side and what the numbers assume

All counts are for the hard side of a building block, the smooth outer face that a properly built base shows the world. The soft side (the one with the visible frame) takes extra damage from tools and some explosives, so if someone has built a wall backwards you will need fewer than the table says. Doors, hatches, window bars and deployables have no soft side; the number is the number.

Everything here is for vanilla servers, checked against Rust Labs on October 24, 2026 for the Livestock update. Modded servers with raid multipliers, custom gather rates or "no raid" windows will differ, sometimes by a lot. Rocket splash is also not modelled: a rocket damages the blocks next to the one it hits, so on honeycomb or a stack of doors the real count can be lower than the per-piece figure.

Choosing between C4, rockets, satchels and explo ammo

C4 wins on walls. It does the most damage per sulfur on stone, sheet metal and armored blocks, and it sticks exactly where you put it. Explosive ammo wins on doors: a sheet metal door is 63 rounds for 1,575 sulfur against 1 C4 for 2,200, and the gap only gets wider on a garage door. Rockets are rarely the cheapest option on a single piece, but they splash, they fire from range and they keep you out of turret range while you work, so most groups bring them anyway.

Satchels are the early-wipe option. They are cheap in sulfur, they need no high-tier workbench and they do fine on wooden and sheet metal doors. Their downside is reliability: a satchel can fail to go off and has to be re-armed, which is bad news when you are standing in front of a door with the owners inside. Bring one or two more than the calculator says.

For a worked example and the resource maths behind each explosive, read the raid cost guide. If you need to farm the sulfur first, the sulfur farming guide covers nodes, quarries and the excavator.

Full raid cost table

Target	C4	Rocket	Satchel	Explo ammo
Building blocks
Wooden Wall, 250 HP	1 × C4 = 2,200 sulfur	2 × Rocket = 2,800 sulfur	3 × Satchel = 1,440 sulfur	48 × Explo ammo = 1,200 sulfur (cheapest)
Stone Wall, 500 HP	2 × C4 = 4,400 sulfur (cheapest)	4 × Rocket = 5,600 sulfur	10 × Satchel = 4,800 sulfur	182 × Explo ammo = 4,550 sulfur
Sheet Metal Wall, 1,000 HP	4 × C4 = 8,800 sulfur (cheapest)	8 × Rocket = 11,200 sulfur	23 × Satchel = 11,040 sulfur	399 × Explo ammo = 9,975 sulfur
Armored Wall, 2,000 HP	8 × C4 = 17,600 sulfur (cheapest)	15 × Rocket = 21,000 sulfur	46 × Satchel = 22,080 sulfur	798 × Explo ammo = 19,950 sulfur
Doors and hatches
Wooden Door, 200 HP	1 × C4 = 2,200 sulfur	1 × Rocket = 1,400 sulfur	2 × Satchel = 960 sulfur	18 × Explo ammo = 450 sulfur (cheapest)
Sheet Metal Door, 250 HP	1 × C4 = 2,200 sulfur	2 × Rocket = 2,800 sulfur	4 × Satchel = 1,920 sulfur	63 × Explo ammo = 1,575 sulfur (cheapest)
Garage Door, 600 HP	2 × C4 = 4,400 sulfur	3 × Rocket = 4,200 sulfur	9 × Satchel = 4,320 sulfur	150 × Explo ammo = 3,750 sulfur (cheapest)
Armored Door, 1,000 HP	3 × C4 = 6,600 sulfur	5 × Rocket = 7,000 sulfur	15 × Satchel = 7,200 sulfur	250 × Explo ammo = 6,250 sulfur (cheapest)
Wooden Double Door, 200 HP	1 × C4 = 2,200 sulfur	1 × Rocket = 1,400 sulfur	2 × Satchel = 960 sulfur	18 × Explo ammo = 450 sulfur (cheapest)
Sheet Metal Double Door, 250 HP	1 × C4 = 2,200 sulfur	2 × Rocket = 2,800 sulfur	4 × Satchel = 1,920 sulfur	63 × Explo ammo = 1,575 sulfur (cheapest)
Armored Double Door, 1,000 HP	3 × C4 = 6,600 sulfur	5 × Rocket = 7,000 sulfur	15 × Satchel = 7,200 sulfur	250 × Explo ammo = 6,250 sulfur (cheapest)
Ladder Hatch, 250 HP	1 × C4 = 2,200 sulfur	2 × Rocket = 2,800 sulfur	4 × Satchel = 1,920 sulfur	63 × Explo ammo = 1,575 sulfur (cheapest)
Windows and embrasures
Wooden Window Bars, 250 HP	1 × C4 = 2,200 sulfur	2 × Rocket = 2,800 sulfur	3 × Satchel = 1,440 sulfur	48 × Explo ammo = 1,200 sulfur (cheapest)
Metal Window Bars, 500 HP	2 × C4 = 4,400 sulfur (cheapest)	4 × Rocket = 5,600 sulfur	12 × Satchel = 5,760 sulfur	200 × Explo ammo = 5,000 sulfur
Metal Embrasure, 500 HP	2 × C4 = 4,400 sulfur	4 × Rocket = 5,600 sulfur	13 × Satchel = 6,240 sulfur	167 × Explo ammo = 4,175 sulfur (cheapest)
External walls and gates
High External Wooden Wall, 500 HP	2 × C4 = 4,400 sulfur	3 × Rocket = 4,200 sulfur	6 × Satchel = 2,880 sulfur	96 × Explo ammo = 2,400 sulfur (cheapest)
High External Wooden Gate, 500 HP	2 × C4 = 4,400 sulfur	3 × Rocket = 4,200 sulfur	6 × Satchel = 2,880 sulfur	96 × Explo ammo = 2,400 sulfur (cheapest)
High External Stone Wall, 500 HP	2 × C4 = 4,400 sulfur (cheapest)	4 × Rocket = 5,600 sulfur	10 × Satchel = 4,800 sulfur	182 × Explo ammo = 4,550 sulfur
High External Stone Gate, 500 HP	2 × C4 = 4,400 sulfur (cheapest)	4 × Rocket = 5,600 sulfur	10 × Satchel = 4,800 sulfur	182 × Explo ammo = 4,550 sulfur
Deployables
Tool Cupboard, 100 HP	1 × C4 = 2,200 sulfur	1 × Rocket = 1,400 sulfur	1 × Satchel = 480 sulfur	9 × Explo ammo = 225 sulfur (cheapest)
Auto Turret, 1,000 HP	1 × C4 = 2,200 sulfur	4 × Rocket = 5,600 sulfur	2 × Satchel = 960 sulfur (cheapest)	100 × Explo ammo = 2,500 sulfur

Top number is how many you need, bottom is the sulfur they cost. The green cell is the cheapest option.

Numbers checked against Rust Labs on October 24, 2026, current for the Livestock update.

Frequently asked questions

How much sulfur does it take to raid a stone wall?

The cheapest option on a stone wall (500 HP) is 2× C4, which costs 4,400 sulfur. The alternatives are 4 rockets (5,600), 10 satchels (4,800) or 182 explosive rounds (4,550).

What is the cheapest way through a sheet metal door?

63 explosive 5.56 rounds, for 1,575 sulfur. One C4 also does it but costs 2,200, two rockets cost 2,800 and 4 satchels cost 1,920. Explo ammo is slow and loud, so if the base is online many groups still pay for the C4.

How many rockets for an armored wall?

15 rockets, or 21,000 sulfur. 8 C4 does the same job for 17,600, which is why nobody rockets armored walls unless they have to.

How much sulfur is one C4, one rocket, one satchel?

Crafted from scratch: a Timed Explosive Charge is 2,200 sulfur, a rocket 1,400, a satchel charge 480 and one explosive 5.56 round 25. The figures include the sulfur in the gunpowder and in the Explosives component.

Do these numbers apply to the soft side?

No. Building block counts are for the hard side. The soft side takes more damage from melee tools and some explosives, so a backwards wall needs fewer. Doors, window bars and deployables have no soft side.

Does the calculator account for rocket splash?

No. Each piece is priced on its own. A rocket also damages the blocks next to the one it hits, so on honeycomb or doors stacked in a line you may get away with fewer rockets than the per-piece count suggests. Treat the total as a safe upper bound.

Can I share my raid plan?

Yes. Every piece you add goes into the page URL, so "Copy link" gives you a link that opens with the same selection for anyone. The "Crafting list" button does the same thing into the crafting calculator.

Rust raid calculator