

Add blocks and items that can hold 240 stacks of items. Blocks that can hold 240 stacks can be created at the workbench using chests and obsidian; items that can hold 240 stacks (like backpacks) can be created at the workbench using the aforementioned blocks, chests and tools (like diamond swords). This is useful when your inventory is full with items during your Minecraft journey!
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as ultimate_backpack-1.1.0-forge-1.20.1.jar — drop this file into the mods folder
- Download size: 285 KB
- Download link checked 6 Sept 2026 — working
These come from our own check of the pack file, not from the source page.