---
type: faq
title: "Is 16pt cardstock too thick for mailing postcards?"
description: "16pt cardstock measures about 0.016', which sits right at the USPS maximum thickness for the postcard postage rate. In practice most post offices accept it"
resource: https://www.4over4.com/faqs/postcards/is-16pt-cardstock-too-thick-for-mailing-postcards
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# Is 16pt cardstock too thick for mailing postcards?

16pt cardstock measures about 0.016', which sits right at the USPS maximum thickness for the postcard postage rate. In practice most post offices accept it

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

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/postcards/is-16pt-cardstock-too-thick-for-mailing-postcards