<!-- Do not edit this file. It is automatically generated by API Documenter. --> [Home](./index.md) > [puppeteer](./puppeteer.md) > [Metrics](./puppeteer.metrics.md) > [LayoutDuration](./puppeteer.metrics.layoutduration.md) ## Metrics.LayoutDuration property <b>Signature:</b> ```typescript LayoutDuration?: number; ```