Durability

Every weapon, shield, and piece of armor has the Durability property, which is used to determine how close the item is to breaking or requiring repair. The more Durability an object has, the more time it will take to wear down. The less Durability an object has, the less time it will take to wear down. The Durability property is comprised of two parts: the Current Durability, and the Maximum Durability, both of which are values in the range of 0-255.

Current Durability

The Durability property on an item is displayed as two numbers divided by a forward slash. The number before the slash denotes the Current Durability.

Example: An item has the property "Durability 50 / 100" on it. The Current Durability of the item is 50.

Decreasing Current Durability

The Current Durability on an item is decreased through hitting monsters, animals, or other players, as in the case of weapons, or through being hit by monsters, animals, or other players, as in the case of armor and shields. When hitting or being hit by Slimes or Acid Elementals, an item's Current Durability is lowered at an increased rate. The lowest Current Durability that an item may have is 0.

Increasing Current Durability

Durability on an item is increased by repairing it via Blacksmithy, Tailoring, Bowcraft/Fletching, or Carpentry, depending on the type of item you are trying to repair.

Blacksmithy - Used to repair all metal armor, metal shields, and metal weapons.
Tailoring - Used to repair all leather armor and hats.
Bowcraft/Fletching - Used to repair all bows.
Carpentry - Used to repair Bokutos and Wooden Shields.

The Current Durability on an item may also be increased during combat through the Self Repair property. The highest Current Durability that an item may have is 255.

Maximum Durability

The Durability property on an item is displayed as two numbers divided by a forward slash. The number after the slash denotes the Maximum Durability.

Example: An item has the property "Durability 50 / 100" on it. The Maximum Durability of the item is 100.

Decreasing Maximum Durability

The Maximum Durability on an item is decreased through two methods:

There is a chance while repairing an item that its Maximum Durability will be decreased by 1.
When the Current Durability of an item reaches 0 and the item continues to be used without repairing, the next time the item's Current Durability would be decreased by 1, its Maximum Durability is decreased by one instead.
- Example: An item has the property "Durability 0 / 100" on it. The next time the item takes damage, the property changes to "Durability 0 / 99".

The lowest Maximum Durability that an item may have is 0. When the Maximum Durability reaches this value, the item is destroyed.

Increasing Maximum Durability

The Maximum Durability on an item is increased by applying Powder of Fortifying to it. The highest Maximum Durability that an item may have is 255.

Repairing

Items with durability can be repaired with the appropriate skill, either with the tool menu or a Repair Contract deed. When repaired an item goes back up to its maximum durability. However, the maximum durability can also be reduced a point on each repair if the item is too damaged and the skill of the repairer is not high enough. When below 40%, a Grandmaster repairer can lose a point. When below 20% durability, a Legendary repairer can cause the item to lose durability.