Datapack Codex

Stronghold/Structure/Library

Minecraft Wiki article. Categories: Stronghold_structure_subpages

📌 Mirrored from Minecraft Wiki

This article is reproduced from Stronghold/Structure/Library on the Minecraft Wiki. Mirrored from revision 3690876. It is licensed CC BY-NC-SA 3.0 by the Minecraft Wiki contributors — not under the Codex’s CC BY-SA 4.0, and it may not be used commercially. Edits belong upstream, not here.

This page documents the layer-by-layer composition of a given generated structure, terrain feature, or feature.
 

Libraries are sometimes found in strongholds, up to 2 per stronghold can generate and never within four rooms of the starting staircase. Stronghold libraries are composed of stone bricks, oak planks, oak fences, torches, bookshelves, cobwebs, one loot chest; it may include ladders and an additional loot chest if it is a two-story library.

The entrance of the library is chosen randomly between the stronghold doors. Every air block in layers 1-4 has a 7% chance to generate as a cobweb instead, therefore the table below shows the average number of cobwebs.

If the library is generated partially or totally floating in a cave and the wall on which the ladders are normally supported is not generated, the ladders will also not generate.

If the two story library collides with other parts of the stronghold during generation due to its height (it is the biggest room of the stronghold, it is not a rare occurrence), then a one-story one is generated in its place.

Materials
Two-story library One-story library
Name Total amount Total amount
Stone Bricks 895 627
Bookshelf 233 161
Oak Planks 166 32
Oak Fence 46 /
Torch 14 8
Ladder 7 /
Chest 2 1
Cobweb 30 (estimated) 30 (estimated)
Blueprint
Ground Layer
Layer 1 & 2
Layer 3
Layer 4
Layer 5, one-story
Layer 5, two-story
Layer 6
Layer 7
Layer 8
Layer 9
Layer 10

Sources

Datapack Codex — The all-versions Minecraft data pack reference. Community reference; not affiliated with Mojang Studios or Microsoft. “Minecraft” is a trademark of Mojang Synergies AB.

Primary syntax targets Minecraft Java Edition 1.21+ (singular folder names). Version-specific behaviour is flagged inline and mapped on the pack_format history page.