Cabin upgrade costs

Wood, iron and build time for every ship room, level by level — marked with how much evidence stands behind each number.

What this is

Every room on your ship has its own upgrade ladder, and the cost climbs faster than anything tells you in game. This is what one structured source publishes, level by level, with the gaps left as gaps.

Levels are sparse because the source publishes some and not others. We do not interpolate. A number we invented would look exactly like a number we checked, and that is the one thing this site will not do.

Rooms

Bay Gun

What It Does: Sailor attack — direct combat power. Gated by flagship level at 6, 12, 18 and beyond single source
Prerequisite: Flagship level 6 single source
Prerequisite: Flagship level 12 single source
Prerequisite: Flagship level 18 single source

Level	Iron	Build time	Evidence
2	500	10m	single source
3	50,000	2h 0m	single source
4	500,000	1d 0h	single source
5	1,000,000	2d 0h	single source

Storage

Produces: Resource capacity, including your protected cap single source
Prerequisite: Flagship level 2 single source
Prerequisite: Flagship level 4 single source
Prerequisite: Flagship level 10 single source
Resources: 1K wood + 500 iron single source
Resources: 5K wood + 2.5K iron single source
Resources: 30K wood + 15K iron single source

Level	Wood	Iron	Build time	Evidence
2	1000	500	10m	single source
3	5000	2500	2h 0m	single source
4	30,000	15,000	1d 0h	single source

Astrologers Chamber

What It Does: Stargazing and star signs single source
Prerequisite: Building materials room level 11 single source
Prerequisite: Building materials room level 19 single source
Notes: Appears in flagship requirements repeatedly (levels 21, 25, 37). Itself gated by the Construction Materials Room single source
Resources: 420K wood + 420K iron single source
Resources: 150 wood + 150 iron single source
Resources: 1.6 million wood + 1.6 million iron single source

Level	Wood	Iron	Build time	Evidence
2	150	150	10s	single source
12	420,000	420,000	17h 0m	single source
20	1,600,000	1,600,000	4d 15h	single source

Cabin Captains

Prerequisite: Dining room level 14 single source
Prerequisite: Dining room level 7 single source
Resources: 850K wood + 850K iron single source
Resources: 150 wood + 150 iron single source
Resources: 28K wood + 28K iron single source

Level	Wood	Iron	Build time	Evidence
2	150	150	10s	single source
8	28,000	28,000	2h 0m	single source
15	850,000	850,000	1d 11h	single source

Exercise Room

Prerequisite: Level 12 forge table single source
Prerequisite: Blacksmith level 20 single source
Resources: 570K wood + 570K iron single source
Resources: 150 wood + 150 iron single source
Resources: 1.8 million wood + 1.8 million iron single source

Level	Wood	Iron	Build time	Evidence
2	150	150	10s	single source
13	570,000	570,000	1d 0h	single source
21	1,800,000	1,800,000	8d 5h	single source

Distillery

What It Does: Drinks — see the distillery recipes guide single source
Prerequisite: Water shed level 9 + Henhouse level 9 single source
Prerequisite: Water cabin level 21 + Henhouse level 21 single source
Prerequisite: Water shed level 9 Henhouse level 9 single source
Prerequisite: Water cabin level 21 Henhouse level 21 single source
Unlocks At: Flagship level 6 single source

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
22	740,000	2d 5h	single source

Galley

What It Does: Cooking — see the cooking recipes guide single source
Prerequisite: Recovery bay level 9 + Cattle shed level 9 single source
Prerequisite: Recovery bay level 21 + Livestock shed level 21 single source
Prerequisite: Recovery bay level 9 Cattle shed level 9 single source
Prerequisite: Recovery bay level 21 Livestock shed level 21 single source
Unlocks At: Flagship level 4 single source

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
22	740,000	2d 5h	single source

Bay Sick

What It Does: Sailor recovery single source
Notes: Flagship prerequisite at 21 and 25 single source
Resources: 35K wood + 35K iron single source
Resources: 50 wood + 50 iron single source
Resources: 390K wood + 390K iron single source

Level	Wood	Iron	Build time	Evidence
2	50	50	10s	single source
10	35,000	35,000	8h 0m	single source
20	390,000	390,000	4d 15h	single source

Enlistment Quarters

What It Does: More sailors for ports, faster resupply single source
Notes: Flagship prerequisite at 8 and 28 single source
Resources: 140K wood + 140K iron single source
Resources: 150 wood + 150 iron single source
Resources: 1.6 million wood + 1.6 million iron single source

Level	Wood	Iron	Build time	Evidence
2	150	150	10s	single source
10	140,000	140,000	8h 0m	single source
20	1,600,000	1,600,000	4d 15h	single source

Liaison Office

What It Does: Gang and alliance liaison functions single source
Notes: Flagship prerequisite at 18, 22, 26, 30 single source
Resources: 35K wood + 35K iron single source
Resources: 50 wood + 50 iron single source
Resources: 390K wood + 390K iron single source

Level	Wood	Iron	Build time	Evidence
2	50	50	10s	single source
10	35,000	35,000	5h 0m	single source
20	390,000	390,000	3d 2h	single source

Crew Quarter

What It Does: Sailor reserve capacity single source
Notes: Keeps you from running dry between fights single source

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Bay Salvage

Produces: Aquatic products (fish) — and gates the Galley single source

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Cattle Shed

Produces: Milk — and gates the Galley single source

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Construction Materials Room

Produces: A percentage discount on build timers, and gates the Astrologer's Chamber single source

Level	Iron	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Hall Mess

What It Does: Where you sell dishes and drinks for gold. Also gates the Captain's Quarters up to 35 single source

Level	Wood	Build time	Evidence
2	150	10s	single source
10	210,000	2h 0m	single source
20	2,300,000	1d 13h	single source

Smithing Table

Produces: Iron — and gates the Drill Hall single source

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Henhouse

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Hut Water

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	2h 0m	single source
20	580,000	1d 13h	single source

Shipbuilder Survey

Level	Wood	Build time	Evidence
2	50	10s	single source
10	53,000	5h 0m	single source
20	580,000	3d 2h	single source

Captain Quarters

What It Does: Sailor attack bonus — a large multiplier on ship Attack single source
Notes: Gated by the Mess Hall up to level 35. See attack vs damage for why this matters more than it looks single source

Drill Hall

What It Does: Raises sailor level, which is direct combat power single source
Notes: Flagship prerequisite at many levels. Gated by the Smithing Table single source

Shipbuilder Study

What It Does: Holds your build queues single source
Notes: Two queues placeable; a third is a paid unlock. Each upgrade cuts build time by 1% single source

Cabin Water

Produces: Fresh Water — and gates the Distillery single source

Chicken Coop

Produces: Eggs — and gates the Distillery single source

Lumber Room

Produces: Wood single source

占星室

Prerequisite: 建材室 single source

廚房

Prerequisite: 捕撈室牛棚 single source

船長室

Prerequisite: 娛樂室 single source

訓練室

Prerequisite: 鍛造室 single source

釀酒廠

Prerequisite: 淨水室雞籠 single source

What we cannot prove here

0 of these 322 values clear two independent sources. None of them do.

Everything else is a lead: one source said it, we recorded who and where, and we are showing it to you marked rather than pretending it is confirmed. That is the honest state of ship cabin costs on the open web right now — not a shortfall in this page.

Sources behind this page: Bahamut 巴哈姆特 player notebook (xace2012), Sea of Conquest Handbook, Mobi.gg. Every value, with its readings, is in the ledger and as JSON in /data.