Stack 99

Makes every item stackable up to 99.

725 Downloads

fabricgame-mechanicsstorageutility

Rent Server with this Mod

About this Mod

This mod makes every item (including blocks, tools, buckets, potions, and all) stackable up to 99.

To use, just install this mod on both fabric server and client.

Available Versions

Stack 99 1.0release

MC 1.21.11fabric

February 21, 2026

How to Install Stack 99 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 (1.21.11).

Install Mod

Open the mod browser in the dashboard and search for "Stack 99". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Stack 99 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 (1.21.11). You can switch loaders with one click in the panel.

Is Stack 99 compatible with fabric?

Stack 99 officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Stack 99 – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Stack 99 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.