Managing claimed chunks is a key part of running or playing on a modded Minecraft server. Players often run into a limit when trying to claim more land, especially in multiplayer worlds where mods like FTB Chunks and FTB Ranks control access. This guide explains how to increase chunk limits safely using server-side settings and permission tools.
What Is FTB Ranks and How Does It Work?
FTB Ranks is a Minecraft mod developed by the Feed The Beast team. It lets server owners create rank-based permissions using JSON files or in-game commands.
Players can be grouped into ranks like guest, member, or admin. Each rank has its own set of permissions. These control access to commands, chunk limits, teleporting, or even bypassing protection systems.
Key features of FTB Ranks include:
- Command-based permission setting
- File-based rank editing (ranks.json or permissions.json)
- Support for default, player-based, or group-based permissions
- Integration with other FTB mods like FTB Chunks or FTB Teams
FTB Ranks connects directly with FTB Chunks to define how many chunks a user can claim or keep loaded.
Why Players Need More Chunk Access?
In modpacks using FTB Chunks, players claim chunks to keep their builds loaded or protected. These chunks help with machines, farms, and item transport across a large area. But many servers limit how many chunks a user can claim.
This limit protects server performance. Still, some users need higher limits—for example, donors, admins, or long-time players. Increasing the chunk limit for certain ranks helps provide better access while keeping the system fair.
Chunk Claimin g vs Chunk Loading: What’s the Difference?
Claiming a chunk marks it as yours. It protects builds from being edited by other players and keeps some automation working. But claiming a chunk doesn’t always keep it active.
Loading a chunk means it stays active even when the player is offline. This is useful for farms or machines that run 24/7. However, loaded chunks can cause lag if abused.
FTB Chunks manages both. Claiming and loading chunks are counted separately, and each has a limit defined in the settings.
Where Are Max Chunk Limits Set?
To change chunk limits, you’ll need to access your Minecraft server’s config files. Follow these steps:
- Open the serverconfig folder in your world directory.
- Find the ftbchunks.snbt file.
- Look for the keys:
ftbchunks.max_claimed_chunks
ftbchunks.max_loaded_chunks - Edit these values for global defaults. Save the file and restart the server.
If using FTB Ranks, you can set these per rank using either commands or config files.
How to Add More Chunks to a Specific Rank?
You can assign different chunk limits to ranks using commands. For example:
/ftbranks set group.donor ftbchunks.max_claimed_chunks 100
/ftbranks set group.donor ftbchunks.max_loaded_chunks 50
This gives players in the donor rank more access than default users.
You can also edit your ranks config file (usually ranks.json or permissions.json). Here’s a sample:
{
“group”: {
“donor”: {
“permissions”: {
“ftbchunks.max_claimed_chunks”: 100,
“ftbchunks.max_loaded_chunks”: 50
}
}
}
}
After editing the file, restart the server or use a reload command if supported.
Best Practices to Avoid Server Lag
Claimed and loaded chunks affect server memory and performance. Keep these tips in mind:
- Avoid giving high limits to all players
- Monitor server tick rate with tools like Spark or Sampler
- Enable automatic unload for chunks of offline players
- Adjust view distance in server.properties
- Keep backups before editing files or ranks
Linking with LuckPerms or Sponge Servers
FTB Ranks works with other permission systems too. If you run a Sponge or Fabric server, you can link FTB Ranks with LuckPerms, a widely used permission manager.
This helps when managing multiple mods or cross-mod features. In these setups, you define group names in both mods, then assign values in each system accordingly. Always test permission changes with a non-OP player to confirm.
Conclusion
FTB Ranks makes it easy to control how many chunks each player can claim or load. Whether you manage a public server or a private modded world, giving access by rank keeps things organized.
Always edit configs carefully, test changes in-game, and keep backups. When used correctly, FTB Ranks adds structure and balance to your multiplayer Minecraft experience.
