// Administration
Stack Size Controller
Set global and item-specific stack sizes.


What you can configure
Control Rust item stack sizes with global, category and individual-item rules.
Edit StackSizeController.json: multipliers, per-item base sizes, durability stacking and unload behavior. Item definitions are resolved by the running Rust server; the Hub does not simulate its inventory.
Double resource stacks only
- Set GlobalStackMultiplier to 1 and CategoryStackMultipliers → Resources to 2; keep other category values at 1.
- Check IndividualItemStackMultipliers for resource overrides: an individual multiplier takes precedence over the category.
- Export, reload StackSizeController and check wood and stone stacks on a test server.
In 4.1.3 a category multiplier applies only when greater than 1; otherwise the global multiplier is the fallback. These multipliers do not multiply together.
Keep wood at a fixed 1,000-item stack
- Set IndividualItemStackSize → wood to 1000.
- Set IndividualItemStackMultipliers → wood to 1 so category/global increases do not multiply this base size.
- Reload the plugin and verify a fresh wood stack. Keep RevertStackSizesToVanillaOnUnload true if unloading should restore vanilla sizes.
Common questions
Why is my individual stack size still multiplied?
IndividualItemStackSize supplies the base, not a final cap. The source then uses an individual multiplier (shortname before numeric ID), a category multiplier above 1, or the global fallback. Use an individual multiplier of 1 for a fixed size.
Why is the default per-item list empty?
The server populates IndividualItemStackSize from Rust item definitions on first load and adds new items later. Import your server-generated file to retain its actual item list; the Hub’s initial example cannot predict future game items.
Before you export
- The reviewed target is Oxide with Stack Size Controller 4.1.3, not a live compatibility guarantee for future Rust or Carbon releases.
- Ignored items and durability handling can bypass configured increases. Effective stack sizes are clamped between 1 and 2,147,483,647; avoid extreme multipliers.
- Leave VersionNumber plugin-managed. Importing JSON does not grant server permissions; grant them separately on the server.
Server permissions
stacksizecontroller.setstack- Change one item through the in-game command.
stacksizecontroller.setstackcat- Change one category through the in-game command.
stacksizecontroller.setallstacks- Change all categories through the in-game command; restrict carefully.
stacksizecontroller.itemsearch- Find item names and IDs in game.
Guide checked against version 4.1.3 · 2026-10-05. AnExiledDev; pinned source patched by chrome · Official plugin · Source for this version
ON PIMPMYRUST
Guided configuration
Import this version’s JSON, edit the settings, and export the finished file.
Choose a connected server to read and apply settings, or keep your export for manual installation. The server receives only the changes you choose to send.