A stylized logo with the letter M designed using a yellow and purple shape on the left side, followed by the black text MEDIA in bold uppercase letters on a white background.

How to Ship an Oversized Package with the USPS

September 27, 2024
Anthony Robinson
Written by
Anthony Robinson
A stylized illustration of envelopes and paper documents in shades of blue, featuring an oversized package with a prominent envelope displaying a red and white striped shield labeled PBS. Some envelopes and papers are scattered, resembling a dynamic, abstract pattern that hints at USPS shipping.

Shipping an oversized package can be a daunting task, but with the United States Postal Service (USPS), it can be a seamless process. In this guide, we’ll cover everything you need to know to ship an oversized package with the USPS, including why it’s a smart choice, their guidelines, size and weight limits, measurement techniques, packaging materials, tips for securing and protecting your package, shipping rates and fees, how to calculate shipping costs, scheduling pickup or drop off, international shipping, tracking, and common mistakes to avoid.

Why Choose USPS for Shipping Oversized Packages

The USPS is an excellent choice for shipping oversized packages for several reasons:

Cost-Effective Flat-Rate Options

Unlike other shipping providers, the USPS offers flat-rate packages through services like Priority Mail, which can save you money compared to shipping based on weight and distance. This means that no matter how heavy your package is, as long as it fits within the limit, you pay the same flat rate.

Reliable Service and Tracking

USPS provides a robust tracking system that allows you to monitor your package from the moment it is shipped until it reaches its destination. This ensures that you and your customers are always informed about the status of the package, enhancing reliability and trust.

Insurance and Protection

USPS offers insurance options for packages, providing added protection in case of damage or loss during transit. Insurance coverage can extend up to $5,000 for domestic shipments and up to $2,500 for international shipments.

USPS Guidelines and Limits for Oversized Packages

Definition of Oversized Packages

According to USPS guidelines, an oversized package exceeds the maximum dimensions of regular packages. Specifically, an oversized package is defined as:

  • Maximum length + girth = 130 inches for Large Packages
  • Maximum length + girth = 165 inches for Very Large Packages

Weight Limits

The weight limits for oversized packages are as follows:

  • Large Package: up to 70 pounds
  • Very Large Package: up to 150 pounds

Packages exceeding these dimensions or weight limits may incur additional fees and require special handling.

Preparing Your Oversized Package for Shipping

Accurate Measurement Techniques

Properly measuring your oversized package is crucial to avoid shipping issues. Follow these steps to ensure accuracy:

  • Measure the length, width, and height of your package in inches.
  • Add the length and girth (the distance around the package at its widest point).
  • Ensure that the combined total does not exceed USPS limits.

For detailed instructions, refer to the USPS Measuring Guidelines.

Choosing the Right Packaging Materials

Selecting appropriate packaging materials is vital for protecting your oversized items:

  • Use double-walled boxes for added strength.
  • Employ extra-strong packaging tape to secure the package.
  • For fragile items, utilize cushioning materials like bubble wrap or foam inserts.

Consider environmental-friendly options by choosing materials made from recycled content or that are biodegradable to reduce your environmental footprint.

Shipping Costs and Fees with USPS

Understanding USPS Shipping Rates

USPS shipping rates for oversized packages depend on several factors, including:

  • Package size and weight
  • Destination zip code
  • Selected shipping service (e.g., Priority Mail, Priority Mail Express)
  • Additional services such as insurance or expedited shipping

Calculating Shipping Costs

Use the USPS Shipping Calculator to estimate your shipping costs. Enter accurate measurements and weight to get the most precise estimate.

Additional Fees

Be aware of potential additional fees for oversized packages, including:

  • Dimensional weight charges for large but lightweight packages.
  • Oversized package fees, which can be up to $100.
  • Special handling fees for exceptionally large or heavy packages.

Shipping Process and Tracking Your Package

Scheduling Pickup or Drop Off

You can schedule a USPS pickup online through the USPS Pickup Service or visit your local post office to drop off your oversized package. Ensure you have all necessary documentation and labels ready.

Tracking Your Shipment

USPS provides comprehensive tracking services. Use the tracking number provided at the time of shipping to monitor your package's journey via the USPS Tracking Tool. Additionally, you can sign up for email or text notifications for real-time updates.

International Shipping and Customs with USPS

Customs Documentation

When shipping oversized packages internationally, accurate customs documentation is essential. Include all necessary forms and declare the value of the contents to comply with international shipping regulations.

Understanding Import Taxes and Duties

Different countries have varying import taxes and duties. Research the specific requirements of the destination country using resources like the U.S. Customs and Border Protection to ensure compliance and avoid delays.

Common Mistakes and Best Practices

Avoiding Packaging Errors

Ensure that you use proper packaging materials and secure your items adequately to prevent damage during transit. Avoid using damaged boxes or insufficient padding.

Accurate Measurements and Weight

Incorrect measurements and weight can lead to unexpected fees or delivery delays. Always double-check your package's dimensions and weight before shipping.

Selecting the Correct Shipping Service

Choose a shipping service that matches your delivery timeline and budget. For urgent shipments, Priority Mail Express may be more suitable, whereas Priority Mail is ideal for standard deliveries.

Proper Labeling

Clearly label your package as oversized and include any special handling instructions to ensure it is handled appropriately during transit.

Conclusion: Tips for Successful Delivery of Your Oversized Package with USPS

Shipping an oversized package can be overwhelming, but with the USPS, it doesn't have to be. By following USPS guidelines, accurately measuring and packaging your items, understanding shipping costs, utilizing tracking services, and avoiding common mistakes, you can ensure a successful and cost-effective delivery of your oversized package. For more detailed information, always refer to the official USPS website or consult with a USPS representative.

A man with a beard smiles at the camera. He is wearing a gray t-shirt with a simple design on it. The background is plain white.

About the Author

Anthony Robinson is the CEO of ShipScience, a pioneering company dedicated to helping e-commerce leaders optimize their shipping decisions, reduce costs, and automate tedious processes. With a Bachelors Degree in Economics from Stanford University, Anthony brings over two decades of expertise in logistics, business development, and operational efficiency to the table.
Read More
Revolutionize your parcel shipping strategy.
Start your free trial
© Copyright 2025 ShipScience.com. All Rights Reserved.  Terms of Use  |  Privacy
All other trademarks and copyrights are the property of their respective owners.
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram