All Stacks to 67

Changes the maximum stack size of all stackable items from 64 to 67. Items that are normally unstackable (like tools, weapons, armor) remain unchanged. Works in singleplayer and on servers.

73 Downloads

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About this Mod

Changes the maximum stack size of all stackable items from 64 to 67. Items that are normally unstackable (like tools, weapons, armor) remain unchanged. Works in singleplayer and on servers.
Versions: Fabric 1.21.1

Available Versions

All Stacks to 67 [Forge] 1.21.1release

MC 1.21.1fabric

May 3, 2026

How to Install All Stacks to 67 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 (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "All Stacks to 67". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

All Stacks to 67 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 (1.21.1). You can switch loaders with one click in the panel.

Is All Stacks to 67 compatible with fabric?

All Stacks to 67 officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with All Stacks to 67 – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if All Stacks to 67 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.