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

About this Mod



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.


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


While this mod isn't required on the client side, mod versions before 1.21.x will require:
- Fabric API (Server and Client)
- Pekhui (Server and Client)
- owo-lib (Server Only)
1.21.2 and later versions are compatible with vanilla clients.
Available Versions
How to Install Size Matters 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 (1.21.10).
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
Minecraft Versions
1.21.10, 1.21.9, 1.21.8 (+12 more)
Server-side
✓ RequiredRecommended 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.
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Rent Modded Server
Install Size Matters with just one click on your server.