The Firewood shed is the fuel step of the chain: 2 Firewood in, 20 Fuel out, run automatically and in no time at all — and the fuel is not something you carry: the shed feeds it to the workbenches in its own zone (the game’s instruction line reads “Put the material in the firewood shed to provide fuel for the workbenches”). Firewood itself comes from the Chopping Spot (1 Short Log or 20 Sticks → 10 Firewood), so the whole line is log → firewood → fuel, and the shed can be handed to a zombie to keep it going on its own.
Build cost & research
Building
Recipes
Build cost
Where
Unlocked by
Firewood shed I
1 automatable
Stick ×10 Bronze Nails ×2
Yard
Bronze Melting 10R
Firewood shed II
1 automatable
Stick ×20 Bronze Nails ×6 Bronze Detail ×2
Yard
Firewood shed II 20R
Costs and research come straight from the game data, and “Where” is the work zone whose build desk offers the building — the game’s own placement record. “No research listed” means the page has none to show: either this build records none, or the game ships no name for it. In practice these rows are gated by materials, not by the tech tree.
The shed's one recipe is the fuel step: 2 Firewood in, 20 Fuel out. It also holds firewood and runs as a zombie job — the data flags the shed itself as a station a worker can operate.
Firewood shed I 1
Output
Ingredients
Ticks
Inspiration lv
Tech
Unlocked by
Tags
Fuel ×20
Firewood ×2
—
1
—
—
automaticfuel
“Inspiration lv” is the level this station’s own inspiration track has to reach — below it the recipe is not offered. “Needs” is the extension that has to stand next to the station before the recipe appears.
What these products feed
Product
Used by recipes
Stations
Fuel
61
Kiln · Furnace I · Furnace II · Kitchen Oven · Kitchen Oven II · Brewing Stand · Distillation Cube · Kitchen Table II
Only products with a follow-up recipe are listed; anything missing is not consumed by a recipe in this build.
Where the inputs come from
Input
Used here
Produced at
Firewood
1
Chopping Spot
Stick build cost
—
Lumberjack stand
Bronze Nails build cost
—
Wooden Anvil · Iron Anvil · Steel Anvil
Bronze Detail build cost
—
Wooden Anvil · Iron Anvil · Steel Anvil
“Used here” counts how often the input appears in this page’s recipes and build costs; “no producing row” means the recipe, alchemy and crop tables all come up empty — you gather, hunt, buy or loot it instead.
Common questions
Is there a Fuel item you carry around?
No. Nothing in the game hands you a stack of fuel to keep in your bag: you put Firewood into the shed, and the shed supplies the workbenches around it — the game’s own instruction line is “Put the material in the firewood shed to provide fuel for the workbenches.” That is why the furnace wants a shed standing beside it, and why the number in the shed window is the fuel the workbenches can draw on.
Where does Fuel come from?
From the shed: 2 Firewood in, 20 Fuel out, automatically and instantly. The chain is log → Chopping Spot → Firewood → Firewood shed → Fuel, and Fuel is what the furnaces, the kiln, the kitchen oven and the Distillation Cube burn.
What are the two tiers and their costs?
Tier I: 10× Stick + 2× Bronze Nails, unlocked by the Bronze Melting research. Tier II: 20× Stick + 6× Bronze Nails + 2× Bronze Detail, unlocked by its own Firewood shed II research (20 red / 5 green). Tier II roughly doubles the stick cost and adds bronze parts.
Does the firewood shed make firewood or fuel?
No — what it makes is Fuel, not firewood. Firewood comes from the Chopping Spot (1× Short Log → 10 Firewood, 5 ticks; 20× Stick → 10 Firewood), and the shed's own recipe turns 2× Firewood into 20× Fuel. There are separate kitchen-side variants of both tiers.
Stick ×10 
Bronze Nails ×2 
Bronze Detail ×2 
Fuel ×20 
Firewood ×2