# Sandbox.Model.CommonData.ImpactDamage

```csharp
float ImpactDamage { get; set; }
```

The amount of damage this deals to other objects when it collides at high speed.
If set to -1, this will be calculated from the mass of the rigidbody.

Declared in [Sandbox.Model.CommonData](/api/Sandbox.Model.CommonData).
Assembly: `Sandbox.Engine`.