The Black Smith’s Forge becomes available once you collected the “Sword of Souls” from Shattergrave Barrow and restored peace to the town. The SDU station gets introduced to you as you settle in this new sanctuary, called Brighthoof.
Here you can find which types of storage deck upgrades there are, how much capacity they add to your inventory, and how many SDUs you can buy from each.
|Pistol||+ 100 Pistol Ammo||10|
|Shotgun||+ 20 Shotgun Ammo||10|
|SMG||+ 180 SMG Ammo||10|
|Assault Rifle||+ 140 AR Ammo||10|
|Sniper||+ 12 Sniper Ammo||13|
|Heavy Weapon||+ 3 Launcher Ammo||13|
|Backpack||+ 2 Backpack Slots||13|
|Lost Loot||+ 1 Lost Loot Slot||8|
|Bank||+ 20 Bank Space||23|
Purchasing Storage Deck Upgrades costs money. The price increases everytime you buy one. The costs can rapidly ramp up as it’s tripled with each purchase so check out my Money Guide for Tiny Tina’s Wonderlands to help you on your way.