Maikura Stack Expansion
by MaikuraKobo
Maikura Stack Expansion raises the stack limits of many item categories, and it caps how far potion durations can accumulate.
What it does
Stack limits are set per item category in the mod's config. Block items can stack to 1024, materials and mob drops to 512, food to 256, and potions and enchanted books to 64. Support for special item limits is included, and the limits can be changed through Mod Menu. Potion duration accumulation has its own maximum, so stacked potions do not exceed a chosen length.
A server running it needs every connecting player to have it too. Fabric API is required as a dependency. Version 1.1.4 is the latest Fabric file, built for 1.21.11 only and released under the MIT License. The code is open source and public links exist for the source and issue tracker.
Key features
Per-category stack limits
Each item category has its own configurable maximum, so block items, materials and food can be tuned separately.
Potion duration cap
The accumulated duration of stacked potions can be limited to a maximum set in the configuration.
Enchanted book combining
Books can be combined at an anvil into one stack, with the anvil consuming a single book per merge.
Mod Menu settings
Stack limits and the potion duration cap are adjusted through the Mod Menu settings screen.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Bulk storage on a server
Server owners can raise stack sizes so chests hold more of each material before a storage system is needed.
Splitting enchanted books
Books that are combined at an anvil can be split into individual stacks before another use, which avoids unwanted merges.
Who it’s for: Players and server owners who want larger stacks for particular item types and a limit on stacked potion durations on Fabric 1.21.11.
How it compares
Stack Size Modifier is also a Fabric mod with client and server environment, licensed under the MIT License, but its files target 1.21.7. Stack 99 is licensed under the GNU Lesser General Public License v3.0 or later and is open source, with files for 1.21.11. Data Driven Stack Sizes is server-side only, with files for 1.21 – 1.21.4 under a Creative Commons license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Maikura Stack Expansion | Fabric | 1.21.11 | Client and server | 2026-06-14 |
| Stack Size Modifier | Fabric | 1.21.7 | Client and server | 2026-02-03 |
| Stack 99 | Fabric | 1.21.11 | Client and server | 2026-02-21 |
| Data Driven Stack Sizes | Fabric | 1.21 – 1.21.4 | Server-side only | 2025-03-15 |
Questions
Does Maikura Stack Expansion require Fabric API?
Does the server need the mod?
Which game version is supported?
In the catalog
Maikura Stack Expansion is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from MaikuraKobo
Similar mods
What the author says
Expand stack sizes and potion duration limits with fully configurable category-based settings. All settings can be changed through Mod Menu.
Official listing
- Modrinth page
- modrinth.com/mod/maikura-stack-expansion
- Owner
- MaikuraKobo
- Published
- 2026-06-06
- Updated on Modrinth
- 2026-06-14
- Facts verified
- 2026-10-15