---
type: faq
title: "What is foam core and how thick is it?"
description: "Foam core is a lightweight display board: a polystyrene foam center sandwiched between two smooth paper facings. Thickness Best for 3/16 inch Standard sign"
resource: https://www.4over4.com/faqs/general/what-is-foam-core-and-how-thick-is-it
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What is foam core and how thick is it?

Foam core is a lightweight display board: a polystyrene foam center sandwiched between two smooth paper facings. Thickness Best for 3/16 inch Standard sign

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

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/general/what-is-foam-core-and-how-thick-is-it