No unpacking: right-click a placed chest with an upgrade — it becomes the next tier, contents stay.
Wood→Copper and Wood→Iron work on normal (single) chests. Chain: copper → iron → gold → diamond → crystal or obsidian → netherite.
Crafting Table3 × 3
+
1 × Wood to Copper Chest UpgradeRequired materials
Copper Ingot8 ×Acacia Planks1 ×
Crafting Table3 × 3
+
1 × Wood to Iron Chest UpgradeRequired materials
Iron Ingot8 ×Acacia Planks1 ×
Crafting Table3 × 3
++++
1 × Copper to Iron Chest UpgradeRequired materials
Iron Ingot4 ×Glass4 ×Copper Ingot1 ×
Crafting Table3 × 3
1 × Iron to Gold Chest UpgradeRequired materials
Gold Ingot8 ×Iron Ingot1 ×
Crafting Table3 × 3
+++
+++
1 × Gold to Diamond Chest UpgradeRequired materials
Glass6 ×Diamond2 ×Gold Ingot1 ×
Crafting Table3 × 3
++++
++++
1 × Diamond to Crystal Chest UpgradeRequired materials
Glass8 ×Obsidian1 ×
Crafting Table3 × 3
+
1 × Diamond to Obsidian Chest UpgradeRequired materials
Obsidian8 ×Glass1 ×
Crafting Tableshapeless
1 × Obsidian to Netherite Chest UpgradeRequired materials
Netherite Ingot1 ×Smithing Template1 ×Obsidian1 ×