Planning Storage Capacity Across All Seven Vault Tiers

Upgrading your vaults increases storage density in two ways at once: moving up the tier ladder adds more inventory slots per block while also raising the maximum stack size allowed inside each slot.

How Slots and Stack Sizes Scale

A basic Create vault holds 20 slots per block at the standard 64 items per stack. Upgrading through the seven material tiers multiplies both limits:

• Copper: 30 slots per block, 72 items per stack (1.7x basic capacity).
• Iron: 45 slots per block, 80 items per stack (2.8x basic capacity).
• Gold: 60 slots per block, 88 items per stack (4.1x basic capacity).
• Diamond: 80 slots per block, 96 items per stack (6.0x basic capacity).
• Emerald: 100 slots per block, 99 items per stack (7.7x basic capacity).
• Obsidian: 125 slots per block, 99 items per stack (9.7x basic capacity).
• Netherite: 160 slots per block, 99 items per stack (12.4x basic capacity).

Building Maximum-Capacity Multiblocks

Because increased slot counts and larger stack sizes stack together, high-tier vaults store massive item volumes without forcing you to expand your factory footprint. A single Netherite vault block holds up to 15,840 items on its own. To build the largest single storage unit possible, assemble a full 3x3x9 multiblock vault and upgrade it to Netherite to store over 1.28 million items in one structure.