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agent-skills/skills/vueuse-functions/references/useSSRWidth.md
Jason Woltje f5792c40be feat: Complete fleet — 94 skills across 10+ domains
Pulled ALL skills from 15 source repositories:
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- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 16:27:42 -06:00

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---
category: Browser
---
# useSSRWidth
Used to set a global viewport width which will be used when rendering SSR components that rely on the viewport width like [`useMediaQuery`](../useMediaQuery/index.md) or [`useBreakpoints`](../useBreakpoints/index.md)
## Usage
```ts
import { provideSSRWidth } from '@vueuse/core'
const app = createApp(App)
provideSSRWidth(500, app)
```
Or in the root component
```vue
<script setup lang="ts">
import { provideSSRWidth } from '@vueuse/core'
provideSSRWidth(500)
</script>
```
To retrieve the provided value if you need it in a subcomponent
```vue
<script setup lang="ts">
import { useSSRWidth } from '@vueuse/core'
const width = useSSRWidth()
</script>
```
## Type Declarations
```ts
export declare function useSSRWidth(): number | undefined
export declare function provideSSRWidth(
width: number | null,
app?: App<unknown>,
): void
```