lucide/docs/guide/astro/basics/stroke-width.md

---
title: Stroke width - Astro
description: Learn how to customize the stroke width of Lucide icons in your Astro applications using the strokeWidth and nonScalingStroke props.
---

# Stroke width

All icons are designed with SVG elements using strokes.
These have a default stroke width of `2px`.

The `strokeWidth` can be adjusted to create a different look of the icons.

## Adjusting stroke width with `strokeWidth` prop

```astro
---
import FolderLock from '@lucide/astro/icons/folder-lock';
---

<FolderLock strokeWidth={1} />
```

## Non-scaling strokes

When adjusting the `size` prop the size of the stroke width will be relative to the size of the icon, this is the default SVG behavior. The `nonScalingStroke` prop is introduced to adjust this behavior to make the stroke width constant no matter the size of the icon.

This means that when `nonScalingStroke` is enabled and the `size` of the icons is set to `48px` the `strokeWidth` will still be `2px` on the screen.

Note `2px` is the default stroke width for a Lucide icon, this can be adjusted to all sizes.

<!--@include: ../../../images/non-scaling-stroke-compare.svg -->

### Adjusting stroke width with `nonScalingStroke` prop

Setting `nonScalingStroke` to `true` will make the stroke width non-scaling.

```astro
---
import RollerCoaster from '@lucide/astro/icons/roller-coaster';
---

<RollerCoaster
  size={96}
  nonScalingStroke
/>
```