Composite Birch Door
A beautiful composite door built by an expert carpenter.
Notes
The Composite Birch Door is a high-tier (5) door item crafted by an expert carpenter using the Composite Lumber Door recipe. As a grid-aligned, 1x2x3 placed object, it functions as a proper door for room enclosure, which is essential after Update 13 removed empty holes as valid windows. Using this door in a room raises its material tier and housing value, contributing to faster skill-point gain for residents—making it a worthwhile upgrade for late-game homes.
Notes are AI-generated and may be imprecise.
⚙ Craft calculator — adjust for your modules, skill & talents
Ingredients
| Ingredient | Qty | Type |
|---|---|---|
| 4 | item | |
| 2 | category |
Byproducts (garbage)
| Material | Qty / craft |
|---|---|
| ≈ 0.06 | |
| ≈ 0.02 | |
| ≈ 0.01 | |
| ≈ 0.01 |
Approximate — a category ingredient's salvage value depends on the item actually used.
Crafting waste collects in the station's garbage output and must be hauled away or recycled — see the Garbage & Recycling guide.
Crafting
| Labor | 180 calories |
|---|---|
| Craft time | 4 min |
| Throughput | ≈ 15 Composite Lumber Door / hour (base) |
As a placed object
Recycling & waste
0.8× Iron Scrap
0.3× Wood Scrap
0.1× Chemical Waste
0.1× Plastic Scrap
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
3.75× Iron Ore
2× Composite Lumber (any)
0.06× Clay
Approximate — category ingredients and any production cycles are counted as raw.