⚠️ Eco v0.14 is coming — the next major update reworks upgrade modules, so some of these numbers will change. They reflect the current version. What’s changing →

Simpler tiers: the 1–4 tiered upgrades become a single Basic / Advanced / Modern upgrade each.
Permanent upgrades: a module placed in a workstation is permanent — no more swapping lower tiers out as you progress.
Power transitions: a module can change a station’s power type/draw (e.g. a Modern upgrade moves a sawmill from mechanical to electrical power).
Talent-integrated: modules now use the same bonus/talent system — any talent benefit (power, labor cost, recipe unlocks) can come from a module.
Cheaper to upgrade: with the multi-tier parts gone, fully upgrading a workstation costs significantly less.

We’ll update this calculator shortly after the update releases.

Home › Recipes › Flat Steel Door

Flat Steel Door

▶ View item page: Flat Steel Door

Quantity to craftScales ingredients, labor, time, output & total raw by the number of crafts.

2×Flat Steel

1×Glass

→

1×Flat Steel Door

Produces

Item	Qty
Flat Steel Door	1

Ingredients

Ingredient	Qty	Type
Flat Steel	2	item
Glass	1	item

Crafting

Station	Rolling Mill
Required skill	Advanced Smelting (level 5)
Labor	115 calories
Craft time	4 min
Experience	0.5 XP
Throughput	≈ 15 Flat Steel Door / hour (base)

Total raw materials

Steps32Total labor4885.63 calTotal time52.65 min

70× Limestone
49× Wood (any)
41.25× Iron Ore
22.5× Quicklime
12.38× Clay
10.63× Silica (any)
6× Steel Bar
4.75× Crushed Limestone

Approximate — category ingredients and any production cycles are counted as raw.