Object Hardness

"Hardness isn't just how tough a thing is—it's how loudly it laughs when the world tries to break it."
——Master Veora Stonewright, elder mason of High Bastion

Objects vary in Hardness, a measure of how much physical punishment the material—and the maker's craftsmanship—can absorb before it starts to break down. A Dwarven-forged steel helm is tougher than a pine buckler; a Mithral blade is tougher still. Enchantments, masterwork techniques, or special properties can raise (or occasionally lower) an item's Hardness.

Hardness is the primary defense against Riven: Each point of Hardness cancels one point of Riven that the item would otherwise gain (see Damaging Objects).

Hardness of Materials
HardnessExample Materials
0Woven cloth, Paper, Soft Leather
1Glass, Soft Leather
2Ice, Bone, Hard Leather, Gold, Lead
3Silver, Electrum, Tin, Horn/Chitin, Soft Wood (Pine, Cedar, Bamboo, Woven Sticks, Reeds)
4Copper, Brick, Clay, Soft Stone (Sandstone, Basalt, Obsidian, Limestone)
5Orichalcum, Brass, Hard Woods (Oak, Maple, Walnut, Cherry, Ash, Orange)
6Bronze, Quartz, Common gemstones
7Hard Stones (Granite, Marble)
8Hard Metals (Steel, Iron)
12Mithral
15Adamantine
Infinite HardnessSome items have Infinite Hardness and cannot be destroyed by physical means.
†Not affected by Bludgeoning attacks
Properties that Modify Hardness
PropertyAdjustment
Masterwork+1 Hardness
Magic ItemsAdd the Rank of the Magic Item to its hardness. This already includes the bonus for Masterwork items.
Thick Materials+1 Hardness
Thin Materials-1 Hardness
Very thin or Fragile-2 Hardness
Delicate-3 Hardness