---
type: faq
title: "What does C1S and C2S mean and what is the difference?"
description: "C1S and C2S describe how many sides of a paper stock carry a coating. C1S refers to a stock that is coated on only one side, while C2S is coated on both si"
resource: https://www.4over4.com/faqs/marketing-materials/what-does-c1s-and-c2s-mean-and-what-is-the-difference
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What does C1S and C2S mean and what is the difference?

C1S and C2S describe how many sides of a paper stock carry a coating. C1S refers to a stock that is coated on only one side, while C2S is coated on both si

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

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/marketing-materials/what-does-c1s-and-c2s-mean-and-what-is-the-difference