---
title: "Material 3 Window Size Class API Reference"
---

## Installation
```kotlin
implementation("androidx.compose.material3:material3-window-size-class:1.5.0-alpha16")
```
## Composable Functions
- [calculateWindowSizeClass](/docs/androidx.compose.material3/material3-window-size-class/composable-functions/calculateWindowSizeClass)

## Classes
- [ExperimentalMaterial3WindowSizeClassApi](/docs/androidx.compose.material3/material3-window-size-class/classes/ExperimentalMaterial3WindowSizeClassApi)
- [TestOnly](/docs/androidx.compose.material3/material3-window-size-class/classes/TestOnly)
- [WindowHeightSizeClass](/docs/androidx.compose.material3/material3-window-size-class/classes/WindowHeightSizeClass)
- [WindowSizeClass](/docs/androidx.compose.material3/material3-window-size-class/classes/WindowSizeClass)
- [WindowWidthSizeClass](/docs/androidx.compose.material3/material3-window-size-class/classes/WindowWidthSizeClass)