Why your Forge is locked
If the Forge recipe is greyed out, nothing is broken. The Forge in 7 Days to Die is gated behind the Forge Ahead perk at level 5. Until you have that perk, the game will not let you craft a Forge no matter how many materials you have. That single perk level is the answer to ninety percent of “why can’t I build a forge” searches.
This is a deliberate progression gate: the Forge is the station that turns raw ore into the metal tier of the game, so the developers make you commit to a crafting build before you get it. The skill guide covers how to level Forge Ahead efficiently, and the beginner guide frames when in the first week the Forge should come online.
The Forge recipe
Once Forge Ahead is at level 5, the recipe is modest:
| Ingredient | Quantity |
|---|---|
| Cobblestone Rocks | 50 |
| Wood Log | 1 |
| Leather | 10 |
| Duct Tape | 3 |
| Short Iron Pipe | 3 |
Craft time is 81 time units. Everything here is early-game material except the Short Iron Pipe, which is the one item you may need to loot or scrap for. The looting guide is where pipes and Duct Tape come from, and the item guide covers scrapping paths.
You can get a Forge three ways
The wiki lists the Forge’s obtain methods as Crafting, Looting, Trading. That is a useful reminder: you do not have to craft your first Forge at all.
- Trading: traders sell Forges, and trader outposts also have usable Forges you can walk up to and use.
- Looting: Forges appear in POIs and can be looted or used in place.
- Crafting: build your own once Forge Ahead hits 5.
Using a trader’s Forge early is a legitimate strategy — smelt your first metal there while you save Cobblestone and pipes for your own base. The trader guide covers trader locations and stock.
The three tool slots (this is the real Forge)
The Forge is not just a smelter. It has 3 tool slots in the upper-right of its menu, and these tools are what unlock the advanced recipes:
| Tool | Effect |
|---|---|
| Advanced Bellows | Increases smelting speed by 50% |
| Anvil | Increases crafting speed |
| Crucible | Required to craft Forged Steel |
The Crucible is the important one: without it, you cannot craft Forged Steel, which gates a huge amount of late-game gear (including the Gyrocopter chassis — see the Gyrocopter guide). The Bellows and Anvil are throughput upgrades; the Crucible is a hard unlock. Plan to get one as soon as you have a Forge running.
Tools are removable and portable — you can carry them to Forges at other locations, so a Crucible you find is never wasted.
Forge stats and upkeep
| Property | Value |
|---|---|
| Durability | 800 |
| Mass | 10 |
| Max load | 10 |
| Stack | 1 |
| Heat map strength | 1.5 |
Two numbers to respect: the Forge has a heat map strength of 1.5, higher than a Workbench (0.5), so a running Forge draws more zombie attention. And it is mass 10, meaning it is heavy to carry — build it where you intend to keep it. The base building guide covers placing high-heat stations away from your sleeping quarters.
To relocate a Forge, a player-owned Forge inside your Land Claim Block can be picked up by holding the activate key (default E) and selecting the pick-up option.
The Forge in the crafting chain
The Forge’s job is to smelt metals into tools, weapons and ammo components, and to smelt stone into cement. Almost everything metal in the game flows through it, which is why it sits at the centre of the crafting tree. Build order from a fresh world is: Forge (Forge Ahead 5) → Workbench (Advanced Engineering 2) → everything else. The Workbench guide covers the second step, and the survival guide keeps you fed while you grind the perks.
What to smelt first (and what not to)
A new Forge is a temptation to smelt everything, which is a mistake. Smelt in this order:
- Iron into Forged Iron. Forged Iron is the backbone of tools, weapons and workstation parts — the Workbench alone eats 25 of it, and the Forge itself repairs with it. Keep it running.
- Stone into cement. Cement unlocks concrete building, which is the difference between a base that holds and one that folds on day 7.
- Only then, specialty metals. Lead for ammo, brass for casings, and the rest once your core supply is steady.
Do not dump your whole ore stock into a Forge with no Bellows. Smelting without an Advanced Bellows (which raises smelting speed by 50%) is slow, and slow smelting while a horde is coming is how bases fall. Install the Bellows before you rely on the Forge for a deadline.
Forge versus Workbench: build both, in this order
Players often ask whether they need a Forge or a Workbench first. The answer is Forge first, because the Workbench’s recipe needs 25 Forged Iron — which you can only make in a Forge. So the chain is: level Forge Ahead 5 → build the Forge → smelt Forged Iron → level Advanced Engineering 2 → build the Workbench. Skipping ahead just leaves you staring at a greyed-out Workbench recipe. The Workbench guide covers the second half in detail.