
Balanced Stack Sizes
Rebalance item stack sizes in Minecraft. Part of the Balanced Minecraft project.
About this Mod
Balanced Stack Sizes
Balanced Stack Sizes allows configurable changes to the maximum stack size of items. This mod will not change anything by default - you must set the config (see below).
A pre-made config file is available to download alongside each version which affects various bulk items, and items whose stack size is too small. This configuration aims to increase stack sizes in a balanced way to combat the inventory space issue.
Configuration
The mod's config is located at balancedstacksizes.json5stackSizes: A map of item identifiers or tags to their maximum stack size (max 2,147,483,646)
Example Config:
{
"stackSizes": {
"minecraft:dirt": 256,
"#minecraft:planks": 128,
"minecraft:waxed_exposed_cut_copper_stairs": 32
}
}
Entries higher in the list take priority.
Server configuration will be automatically synced to clients when joining a server.
Items with durability can be made stackable, however using the stack will reduce the durability of all items in that stack.
The text size of stacks above 999 will be decreased, however above 999,999 the text will still overflow into the next slot.
Dependencies
This mod requires owo lib.
Available Versions
How to Install Balanced Stack Sizes on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.3).
Install Mod
Open the mod browser in the dashboard and search for "Balanced Stack Sizes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.3
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Balanced Stack Sizes server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.3). You can switch loaders with one click in the panel.
Is Balanced Stack Sizes compatible with fabric?
Balanced Stack Sizes officially supports fabric for Minecraft 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Balanced Stack Sizes – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Balanced Stack Sizes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Balanced Stack Sizes with just one click on your server.