---
type: guide
title: "Folded Vs Flat Postcards"
description: "Folded vs flat postcards compared: mailing costs, USPS rules, design space, and response rates. Learn which postcard format fits your campaign before you print."
resource: https://www.4over4.com/guide/folded-vs-flat-postcards
tags: ["guide"]
timestamp: 2026-07-20T18:54:40.856Z
---

# Folded Vs Flat Postcards

Folded vs flat postcards compared: mailing costs, USPS rules, design space, and response rates. Learn which postcard format fits your campaign before you print.

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

- Page type: guide
- URL: https://www.4over4.com/guide/folded-vs-flat-postcards