⚠️ 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 › Items › Composite Spruce Lumber

Composite Spruce Lumber

Composite Spruce Lumber

A composite lumber made from a combination of wood and plastic.

Weight10000 gMax stack20Carried on backSkillComposites Lv 1StationAdvanced Carpentry Table

Notes

Composite Spruce Lumber is a tier 5 building block crafted from wood and plastic via the Composite Lumber recipe, requiring the Composites specialty and advanced industrial infrastructure. As a high-tier material, it is used in late-game structures such as the Computer Lab and Modern Upgrade 3, as well as various high-end furniture and fixtures. For efficient progression, ensure a steady supply of plastic (from oil refining) before investing in this material, and prioritize crafting it for buildings that gate the meteor-defense tech or high-tier upgrades.

Notes are AI-generated and may be imprecise.

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Upgrade modules
Talents

Ingredients

IngredientQtyType
Plastic1item
Epoxy1item
Wood1category
Wood Board4category

Crafting

Labor120 calories
Craft time0.64 min
Throughput≈ 93.8 Composite Lumber / hour (base)

As a block

Material tierTier 5SolidWall

Total raw to craft this

Steps15Total labor1542.5 calTotal time6.89 min

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

Categories

Obtained from

Used in

Advanced Carpentry Table
Butchery Table
Electronics Assembly
Laboratory
Robotic Assembly Line
Settlement Crafting Table

See also

Composite Birch LumberComposite Cedar LumberComposite Ceiba LumberComposite Fir LumberComposite Joshua LumberComposite Lumber