# Sandbox.UI.RootPanel.RenderStatistics.CommandBuildTime

```csharp
System.TimeSpan CommandBuildTime { get; set; }
```

CPU time spent drawing panels, batching instances and preparing the render command list.

Declared in [Sandbox.UI.RootPanel.RenderStatistics](/api/Sandbox.UI.RootPanel.RenderStatistics).
Assembly: `Sandbox.Engine`.