---
type: guide
title: "EDDM Postcard Size Guide to Every USPS Dimension"
description: "EDDM postcard size requirements start at 6.125' × 11' minimum. Learn every USPS-approved dimension, popular formats, and mailing tips. Print yours today."
resource: https://www.4over4.com/guide/eddm-postcard-sizes-for-direct-mail-campaigns
tags: ["guide"]
timestamp: 2026-07-20T18:54:40.856Z
---

# EDDM Postcard Size Guide to Every USPS Dimension

EDDM postcard size requirements start at 6.125' × 11' minimum. Learn every USPS-approved dimension, popular formats, and mailing tips. Print yours today.

See [all guide concepts](index.md).

- Page type: guide
- URL: https://www.4over4.com/guide/eddm-postcard-sizes-for-direct-mail-campaigns