🆕 Updated for Eco 14 — “Garbage & Recycling” — this server and these numbers now reflect the new version. What changed →
  • Byproducts: nearly every recipe now leaves waste behind, so recipe pages list byproducts alongside ingredients.
  • Garbage & recycling: waste sorts from mixed garbage down to pure materials, and can be recycled back into stock.
  • Pollution has four kinds: acid rain, chemical, soil and heavy mineral, each settling into the ground differently. Pollution guide →
  • Modules reworked: upgrades are now Basic / Advanced / Modern / Specialty, one per slot, driving the same bonus system as talents. Module guide →
  • Fresh water: machines need it — water drawn from the ocean has to be desalinated first.

The character calculator has been updated for these changes. Read the garbage & recycling guide →

Flat Steel

Flat Steel

Coated with a layer of epoxy, this steel refuses to rust.

Weight10000 gMax stack20Carried on backSkillAdvanced Smelting Lv 5StationRolling Mill

Notes

Flat Steel is a tier-5 building block crafted from steel and coated with epoxy to prevent rust. As the highest-tier solid wall material, it is used in advanced construction and is also a component in crafting the Flat Steel Door and Industrial Elevator. Because it requires high-tier industrial infrastructure to produce, players should ensure a steady supply chain for steel and epoxy before relying on Flat Steel for large builds.

Notes are AI-generated and may be imprecise.

⚙ Craft calculator — adjust for your modules, skill & talents
Upgrade modules (one per slot)
Talents

Ingredients

Ingredients for this recipe
IngredientQtyType
Steel Bar3item
Epoxy1item

Byproducts (garbage)

Garbage byproducts of this recipe
MaterialQty / craft
Iron Scrap0.05
Chemical Waste0.01

Crafting waste collects in the station's garbage output and must be hauled away or recycled โ€” see the Garbage & Recycling guide.

Crafting

Crafting stats
Labor120 calories
Craft time0.64 min
Throughput281.3 Flat Steel / hour (base)

As a block

Material tierTier 5SolidWall

Recycling & waste

Salvages into (per unit)

The same salvage value leaks out as garbage when this item is consumed in crafting.

How garbage, sorting & recycling work

Total raw to craft this

Steps18Total labor1275.78 calTotal time16.15 min

Approximate โ€” category ingredients and any production cycles are counted as raw.

Categories

Obtained from

Used in

Robotic Assembly Line
Rolling Mill

See also

Coated with a layer of epoxy, this steel refuses to rust.