Size Matters

Size Matters

Applies a random height to players when joining a world for the first time.

by
1.1K Downloads
fabricadventuregame-mechanicssocial
Rent Server with this Mod

Screenshots

SM Banner

About this Mod

Demonstration of different sizes while also being a neat banner :D

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Mod Info

Size Matters is a roleplay-centric mod that adds the unique trait of height to the game.

Upon joining a world for the first time, players will be assigned a random permanent height ranging from 70% to 130% of normal height.

There are also options for having player height be dependent on a player's UUID, causing the player to have the same height no matter what server they join, as long as the option is enabled on that server.

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Technical Info
When joining a server the mod:

  1. Checks to see if the player already has data (if no continue if yes skip to step 4)
  2. Generates a random number between 0.7 and 1.3 (clamped to the 2nd decimal)
  3. Saves that number in the players unique user data (sizematters.size_data-blocked:player_height)
  4. Applies the number to the players height and width

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Requirements
While this mod isn't required on the client side, mod versions before 1.21.x will require:

1.21.2 and later versions are compatible with vanilla clients.

Available Versions

Size Matters 1.21.6+1.0.1release
MC 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric
December 1, 2025
Size Matters 1.21.2+1.0.0release
MC 1.21.2, 1.21.3, 1.21.4, 1.21.5fabric
November 27, 2025
Size Matters 1.20.1+1.0.0release
MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6fabric
November 24, 2025

How to Install Size Matters on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+12 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Size Matters 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 (1.21.10). You can switch loaders with one click in the panel.

Is Size Matters compatible with fabric?

Size Matters officially supports fabric for Minecraft 1.21.10, 1.21.9, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Size Matters – how to optimize performance?

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

Rent Modded Server

Install Size Matters with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
Creative Commons Zero v1.0 Universal
Server-side
Required

Supported Versions

1.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.21.20.6+5 more