You can check out the starting prices for many of our domestic and international mailing and shipping options below or visit the Postal Explorer ® website to review the full USPS® Price List.

Sep 12, 2025 · For a large Flat Rate Box, expect to pay $24.75 retail or $19.51 commercial; for a small Flat Rate Box, $10.40 retail or $8.51 commercial. These rates simplify shipping heavy items over …

Mar 21, 2025 · USPS Flat Rate Box Price Guide (2025): compare Small, Medium & Large pricing, savings vs Cubic, tips to cut 12–15% costs, automate labels, scale with Easyship.

Nov 25, 2025 · Learn the Medium Box USPS Flat Rate: dimensions, weight limits, retail vs commercial pricing, and when it’s cheapest. Compare rates before you ship today.

Sep 8, 2025 · That’s where USPS Flat Rate Boxes come in a simple solution where you pay a flat fee, no matter the weight or distance. In this guide, we’ll break down the different sizes, prices, and …

Sep 5, 2024 · USPS boxes come in small, medium, and large sizes with different dimensions and costs. Learn about USPS's different boxes here.

This guide will provide an in-depth look at USPS Flat Rate box sizes, prices, and how this service works, helping you determine if it's the right choice for your shipping needs.

Priority Mail, including Priority Mail Flat Rate shipping products, has fast shipping times (2-3 days) with flexible prices. Get free flat rate boxes and print postage labels online.

Single, Pack of 10 or 25 12-1/4" (L) x 12" (W) x 6" (H) $0.00 Priority Mail® Forever Prepaid Flat Rate Small Box Includes Customer's Return Address 8-11/16" (L) x 5-7/16" (W) x 1-3/4" (H) $12.60

The Priority Mail Flat Rate® Medium Box is an easy way to ship featuring predetermined rates regardless of weight (domestically) or destination. This item ships in single, or a pack of 10 or 25 …