---
type: faq
title: "How thick is foamcore board?"
description: "Foamcore comes in two common thicknesses, and the right one depends on how the sign will be supported and how much rigidity it needs. Thickness Best for 3/"
resource: https://www.4over4.com/faqs/general/how-thick-is-foamcore-board
tags: ["Material", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# How thick is foamcore board?

Foamcore comes in two common thicknesses, and the right one depends on how the sign will be supported and how much rigidity it needs. Thickness Best for 3/

Part of the **Material** hub. See [all faq concepts](index.md).

- Page type: faq
- Hub: Material
- URL: https://www.4over4.com/faqs/general/how-thick-is-foamcore-board