SUBNAUTICA / BASES

Bulkhead

An interior isolation structure that can help control flooding and separate compartments.

QUICK REFERENCEFirst SubnauticaReviewed 2026-10-28Reference / noindex

OVERVIEW

Understanding Bulkhead

An interior isolation structure that can help control flooding and separate compartments.

This is an original reference for the first Subnautica. Your current depth rating, oxygen, available tools and navigation route determine when an objective is practical. Follow actual in-game PDA and Fabricator information for any values that vary by version.

PRACTICAL APPROACH

How to use this information

Use on complex habitats where dividing sections has practical value.

COMMON MISTAKES

What to avoid

It is not a replacement for correct hull integrity.

CONTINUE ON VOLPEDIA

Related topics and walkthroughs

BASESBattery Charger

A base appliance that recharges certain handheld-tool batteries.

BASESBioreactor

A base generator that uses organic material as fuel.

BASESExterior Growbed

An outdoor planter for cultivating suitable underwater or exterior plants.

BASESIndoor Growbed

A planter for growing certain plants inside a habitat.

BASESLarge Room

A spacious base module added to the original game in the 2.0 Living Large update.

A docking module for Seamoth or Prawn Suit and an important upgrade hub.

BASESMultipurpose Room

A flexible habitat component supporting interior installations and storage.

Back to Base Building

Independent Volpedia editorial encyclopedia about the first Subnautica, reviewed 2026-10-28. Unaffiliated with Unknown Worlds Entertainment. Category illustrations are original diagrams, not in-game maps, screenshots or exact creature portraits. No fabricated damage statistics, spawn probabilities or detailed map coordinates. References are documented privately and not shown as outbound research buttons.