Item stacking

A stack is a group of identical items that can be stored in a single inventory space. If an item is stackable, up to 250 copies of it can be held in one stack. The total number of items in a stack is shown as a yellow number over the top of the item's icon.

If you have two stacks of an item, you can combine them by dragging one over the other; if there are more than 250 units total, the stack dragged into will be filled and overflow will remain in the original stack. A stack can be broken by shift-dragging: a dialog will appear when you place the item allowing you to specify the new stack size.

When items are automatically added to a container &mdash; by picking them up off the ground, receiving them in a trade, or dragging them onto a bag icon or storage tab &mdash; partial stacks of that item in the container will be filled before an empty inventory slot is taken.

Stackable items

 * Common and rare crafting materials.
 * Dyes of the same color.
 * Keys and Lockpicks.
 * Certain quest items.
 * Experience and passage scrolls.
 * Skill tomes of the same profession and rarity.
 * Trophies, including reward trophies for quests, such as Monastery Credits, and festivals, such as Lunar Tokens.
 * Hero armor upgrade items.
 * Salvage items that do not represent armor, such as hides and webs.
 * Zaishen Coins of the same type.
 * Single-use consumables of the same type.