---
title: "PreloadTilesForBoundsOptions | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Type Alias PreloadTilesForBoundsOptions

PreloadTilesForBoundsOptions: [TilePreloadOptions](https://docs.maptiler.com/sdk-js/api-reference/types/TilePreloadOptions/) & {  
    bounds: [LngLatBoundsLike](https://docs.maptiler.com/sdk-js/api-reference/types/LngLatBoundsLike/);  
    maxZoom: number;  
    minZoom: number;  
}

Options for preloading all tiles within a geographic bounds across a range of zoom levels.

#### Type Declaration

-   ##### bounds: [LngLatBoundsLike](https://docs.maptiler.com/sdk-js/api-reference/types/LngLatBoundsLike/)
    
    The geographic bounds to preload tiles for.
    
-   ##### maxZoom: number
    
    Maximum zoom level to preload (inclusive).
    
-   ##### minZoom: number
    
    Minimum zoom level to preload (inclusive).
    

#### Remarks[](#remarks)

**API Key Usage**: The number of tiles grows exponentially with zoom level. For example, a city-scale area at zoom 12–15 can result in thousands of tile requests per source. Each request counts against your MapTiler Cloud API key quota.