Getting Started: What You Need to Ship a Package via USPS
Shipping a package with the United States Postal Service is straightforward once you understand the process. Whether you're sending a gift to a family member, fulfilling an online order, or mailing important documents, this guide walks you through every step from packing to drop-off.
Step 1: Choose the Right Box or Envelope
Packaging is the foundation of a successful shipment. Using the wrong box can lead to damage or unexpected surcharges. Here's what to keep in mind:
- USPS-provided packaging: If you're using Priority Mail or Priority Mail Express, USPS offers free flat-rate boxes and envelopes at your local post office or online at usps.com.
- Your own packaging: For First-Class Package Service or Parcel Select, you can use any sturdy cardboard box. Make sure there are no old labels or barcodes from previous shipments.
- Padded mailers: Great for soft goods, clothing, or books that don't need rigid protection.
Step 2: Pack Your Item Securely
Proper packing prevents damage in transit. Follow these best practices:
- Wrap fragile items individually in bubble wrap or packing paper.
- Fill empty space in the box with packing peanuts, crumpled paper, or air pillows to prevent shifting.
- Place a second copy of the address label inside the box in case the outside label is damaged.
- Seal all seams with pressure-sensitive tape at least 2 inches wide. Avoid masking tape or string.
Step 3: Weigh and Measure Your Package
USPS calculates shipping costs based on weight and, for larger packages, dimensional weight. You'll need:
- The weight in pounds and ounces
- The length, width, and height in inches
- The destination ZIP code
You can use the USPS Price Calculator at usps.com to estimate costs before heading to the post office.
Step 4: Choose a USPS Mail Class
Selecting the right service depends on your budget and delivery timeline. Here's a quick overview:
| Service | Typical Delivery | Best For |
|---|---|---|
| First-Class Package | 1–5 business days | Packages under 16 oz |
| Priority Mail | 1–3 business days | Most packages up to 70 lbs |
| Priority Mail Express | 1–2 days (guaranteed) | Time-sensitive shipments |
| Parcel Select Ground | 2–9 business days | Heavy or bulky items |
| Media Mail | 2–8 business days | Books, CDs, DVDs |
Step 5: Create and Attach Your Label
You can purchase and print postage in several ways:
- Online at usps.com: Create a free account, enter package details, pay, and print your label at home. This often saves money compared to counter rates.
- At the post office: A postal clerk will weigh your package and print a label for you.
- Third-party services: Platforms like Stamps.com, Pirateship, or ShipStation offer discounted USPS rates for frequent shippers.
Attach the label to the largest flat surface of the package. Make sure the barcode is not folded or obstructed.
Step 6: Drop Off Your Package
Once your package is labeled, you have several drop-off options:
- Drop it in a blue USPS collection box (for smaller packages with prepaid postage)
- Schedule a free USPS carrier pickup at usps.com — your mail carrier collects it from your door
- Bring it to any USPS Post Office location
- Leave it for your regular mail carrier if it fits in your mailbox
Final Tips
Always double-check the recipient's address before sealing the package. A missing apartment number or wrong ZIP code is one of the most common causes of delayed deliveries. Once your package is in the system, use the tracking number provided on your receipt or label to follow its journey to the destination.